TL;DR: Loved it, didn't like who the culprit is.

A great game with a so-so ending.

First off let me say I went into this game having played about 80% of P5R and all of P3P three times, and, most importantly, knowing who the true culprit is.

I really enjoyed the game overall. The soundtrack is great, the voice acting is pretty good for the most part, the friend group actually feels like a friend group this time around and the mistery is engaging... Until the big reveal...
The culprit didn't do it for me. It may be because I already knew who it was, but I honestly don't think that's it, I just feel it's too out of left field. And I get their reasoning for the murders and whatnot, but eh. Kind of ruined the remaining hours of the game up to the final boss.

I think the review is coming off as too negative, especially for a 4.5 stars rating, but I'm just bad at reviewing art. I did very much have a lot of fun with the game, almost as much as I did with P3P (my absolute favourite). The small town vibe of Inaba is very well done and I liked pretty much all the Social Links, though I missed three of them.

There's a lot more I want to say, but I'm not used to writing, so this is the best I can manage.