If it wasn't for the inclusion of WiFi battling & trading (which doesn't work anymore) this game would've been a mediocre sequel. Many of the new monsters I personally found underwhelming in terms of design, this was the first time a game didn't motivate me to catch a full team. The battle gameplay is slower than its ever been and I found much of the map forgettable. I've heard Platinum was better but this didn't leave me wanting more of Sinnoh. Once again features locked events only accessible via hacking.
Maybe I look at this game with rose tinted glasses but god damn it’s really good. All the Pokémon introduced in this gen were visually great, the legendaries were real cool, and locations all look great with an amazing soundtrack to compliment them. However it has its problems like the slow surf speed, bad story pacing, mediocre characters, and not much post game.
Just too slow. It feels like it takes forever to get from place to place as the routes are incredibly long, often convoluted and filled with trainer battles. Most of the battles take long as well and the Surf speed is really bad. This is also the gen that had about a billion HMs, including such highlights like Rock Climb and Defog. It's still Pokemon though, which is fun enough. Also easily the hardest game in the series, thanks mostly to the physical/special split and that Champion.
Final team: Rotom, Snorlax, Bastiodon, Torterra, Lickilicky, Mamoswine.
Final team: Rotom, Snorlax, Bastiodon, Torterra, Lickilicky, Mamoswine.