I'm not the gamer that value story over gameplay, but I really enjoyed the game due to its great story and characters. The main cast was great and after so many hours it really felt like you've spent a whole school year with them.
The gameplay was good, but I expected more. I think it was really, really easy even on Hard. Unlike SMTV were I put a lot of thought in fusing personas in P5R I just fused without caring at all. The palaces were interesting, but mementos was lame as hell imo.

The story was legit great but, I really didn't like anything that happened after Shido's defeat. Up until that point the game had an almost realistic take on the jrpg genre with a bunch of teens battling corrupted and influential adults. Then suddenly the game introduces a holy grail God and becomes a jrpg clichefest of our team saving the world from a malevolent entity. On top of that nothing seemed to change even after defeat. IMO Shido's defeat would be the ideal point of ending the story.