Persona 5 Royal is a very fun game.
Pros: This is the first Persona game where I found the combat fun and interesting the entire way through, even through a 120 hour game. That's due in part to just how streamlined and responsive the menus are. This game is just fun to play. This is despite the fact that the game is also one of the easiest in the entire series. It's just really fun to play. The introduction of Baton Passes makes combat feel more fluid and snappy, and each persona having its own unique passive trait adds a lot of fun customization. Every Confidant having its own unique unlockable abilities is also incredibly cool, and gives you even more gameplay incentive to try and max them all. The story is hit and miss. I'd say this game's story is both a pro and a con. Some parts are incredibly irritating or boring, meanwhile other parts are literally some of the best parts of any Persona game ever.
Con: This game is TOO LONG. I've never played a game where I loved it the whole way through and yet still felt exhausted by the end. The ending is literally the best part of the game and I was having a total blast and I was still like "Man is this thing gonna be over soon?" Persona 5 Royal is proof that there is such thing as too much of a good thing. Also yeah, some parts of the story are not good. The game also has an incredibly long drawn out tutorial section that lasts like 10 hours before you can get into the fun part of the game. It's really poor pacing for the beginning of a game, and I know it's turned a lot of people away. The story in general is very wordy. They spend way too long explaining and reviewing and flashbacking to things you already knew. It's like they wanted to make sure you could stop playing the game at any point and pick it up 7 months later and still be able to follow what was going on. The characters are constantly recapping things that just happened. The cast is likeable enough but some of them dont feel very well developed in the main story, and their social links feel kind of disconnected as a result.
Overall: An incredibly long, very fun game from start to finish, but with a story that varies in quality from insanely good to insanely bad.

This is my favorite game of all time. It's far from perfect but it just means more to me than any other game I've ever played. It might not click with everyone but by god does it click with me.
Pros: This is definitely the most unique Persona game in terms of its setting, and overall scope. Every other Persona game has you in a bustling city, trying to save the world from some otherworldly threat. Persona 4 places you in a tiny town with not much to do, and it's your job to solve a single serial murder case. The stakes are lower, and the scope is smaller, and you're left with a Persona game that feels much more personal than any other game in the series. The town of Inaba feels like my second home, like I've lived there all my life. The characters are also incredibly fleshed out and endearing in a way no other Persona game quite manages, although Persona 2 comes close. My absolute favorite thing in Persona games is when we get to dig deep into the psychology of a character, and Persona 4 has that in spades. It took the concept of a Shadow version of someone that Persona 2 introduced, and absolutely runs wild with the concept. Each dungeon is an in depth look into the mind of a specific character. Their hopes, their fears, the things they hate about themselves, and I absolutely love it. It's a huge improvement over Persona 3's Tartarus, spending hours upon hours grinding through the same identical hallways. Every party member feels incredibly fleshed out and realized as a result, and it leads to a cast of characters that just feel like my actual friends. Some people find this game's lighter tone annoying, and they prefer Persona games that are more serious and are focused more on the direct story, not having any cutscenes that don't contribute to the main plot. That's a perfectly fine opinion to have, but I personally really enjoy the abundance of silly, less important scenes in this game. I agree that they mess with the pacing at times, but they just make the characters even more endearing to me, and make them feel even more like just a group of normal kids. These aren't some elite team of ultra-serious super soldiers training to save the world, they're just some normal high schoolers still trying to live their everyday lives while dealing with normal high school problems. They deserve some moments of levity, and Persona 4 does a great job of realizing that. The combat is also improved from Persona 3, mostly just by letting you directly control your party members. It's such a simple change but it really goes a long way at making combat feel more freeing and flexible and less frustrating. The main thing that keeps me coming back to this game, though, is its theme of self acceptance. The message of "you should accept yourself for who you are instead of denying it and not being your true self" seems so simple, but it came to me at a time when I really needed it, and the game explores that concept in a variety of ways. It not only asks "why wouldnt someone be aware of their true self", but also "what if you don't know what your true self is?", "what if other people dont like your true self?", "what if you find out who you are and don't like it?" and more. It really digs deep into the concept and seeing these kids who I felt like I was friends with be so honest and vulnerable about who they were and what they wanted in life really got me thinking the same way, and it ultimately changed my life for the better. Also the main antagonist is a really good character and I like them
Cons: The biggest thing I dislike about this game is definitely how much of it has aged poorly. It's an older game so I can excuse it as being a product of its time, but its frustrating how many parts in this game skew homophobic, or transphobic, or fatphobic, or weird and perverted. It's not a huge part of the game by any means, there's only a handful of scenes that really make me cringe, but it's enough to noticeably affect my enjoyment of the game, and is worth bringing up as a con. Another con I would say is the combat. Yes, this game is an improvement over Persona 3, and yes it's nowhere near as monotonous thanks to the variety of dungeons in the game. This is easily the best and most fun Persona combat had ever been up to this point. It still gets a ltitle old and repetitive by the end. I personally dislike that they simplified the combat from Persona 3. Only one type of Physical attack, and the Protagonist can only equip a single weapon type, no more fusion spells. It's also not a huge flaw or anything but it does make this the Persona game with the simplest combat system and it's a bit of a shame. The game also tends to skew a bit on the easier side. Luckily with modern rereleases you can fully customize the difficulty. You can fully control damage dealt, damage recieved, xp dropped, money dropped, and you can tweak the difficulty of things to your liking. So if you want a harder experience you can go in and craft one. Another flaw the combat has is that there's not nearly as much incentive to switch out your party members. In Persona 3, you had a massive cast of party members, and the game placed teleporters before every miniboss so you could go to the first floor of Tartarus and switch your team composition, so you wanted to keep everyone at around the same level so you could bring the right team of people for the current fight. Persona 4 doesn't really have that, and it's pretty likely that there are certain party members you'll just never wind up using. I know for me personally once I got the final new party member, I never had a reason to switch off the team I was using, and the remaining party members just sat unused at a much lower level. Persona 5 would go on to fix this with the ability to switch your party anywhere at will, and with an XP share that gives backup teammates XP as well. It's really not a huge flaw, but definitely something I noticed.
Overall: Other people will say different but to me, this is the best Persona game. It does the best job at appealing to me personally. And that's all that matters. It's story is simple but effective and it's cast is incredibly endearing and fleshed out. The world this game creates feels real and lived in and it's story of self acceptance changed my life for the better

Persona 3 FES is an amazing game, although it's brought down by some glaring problems due to it being the first Persona game of it's kind.
Pros: This game has a great story, with great characters. The social links with the various characters who live in the city are a wonderful addition and managing social stats is incredibly fun. It seems very simple when compared with future games in the series, but it's important to remember just how big of a leap forwards this was. The Persona 2 duology doesn't really have anything like this. They were reinventing the entire series with this game and it paid off. The story is has some amazing themes and ideas and explores the concept of death in wonderful ways. Each of the party members has a different relationship with it, still dealing with the grief. Even the dog is grieving someone. The characters are all great, even if some of them feel a little one note, and the emotions really run high. The gameplay is also much improved from Persona 2. Gone is the autobattle system, Persona 3 introduces the 1 More system, a very smart, fun and snappy battle system with a lot of depth. Elements of Persona 2's systems can still be felt, with the main character's fusion spells being similar in concept to 2's fusion spells, and the AI controlled party members feeling similar to 2's autobattle. The core combat system is great. It strikes a good balance between simplicity and depth.
Cons: Speaking of combat, while the combat system is a vast improvement over Persona 2, it's still a huge glaring weak point of the game. Tartarus, the game's main dungeon, is incredibly repetitive and goes on for way too long without any real variation. And while the AI controlled party members gives the game a unique identity by making all your party members feel like individual people with their own preferred battle tactics, it still just kinda sucks to use. It's very frustrating to lose a battle and know you could have won if your teammates weren't so stupid. That's not a good feeling to have in a singleplayer game. The AI party members combined with the incredible repetitive structure of Tartarus and some incredibly unbalanced difficulty spikes makes this one of the most frustrating Persona games to date. The story, while having some amazing themes, also is far from perfect. The game takes way too long to really start getting anywhere interesting, and there are significant periods of time in the game where it just feels like nothing really interesting is happening. In addition, basically every antagonist in this game is incredibly one note and not interesting or fleshed out at all. It's a wonderful framework for a story, but its not told or executed with the most grace. All these flaws really drag the game down in my eyes.
Overall: Despite it's flaws, Persona 3 FES is a game I can't help but love. It's a wildly experimental game, and the experimentation paid off, spawning the entire modern Persona series. At the same time, not every new idea worked, and it leaves the game feeling like it falls short in a lot of ways. Even with all it's flaws, it's still an emotional ride from start to finish.