So yeah I finally beat this game about a month ago. Final time clocked in at about 120 hours, and that's one playthrough not doing/seeing everything.
It was my first Persona game and I loved it so I downloaded Persona 3 FES on PSN and going through that. Doesn't seem nearly as good as P4 so far, though. I have Persona 4 Arena lined up for when I finish FES.
I'm hoping the Persona announcement on the 22nd will be Persona 5 on PS4.