Catherine: Full Body is currently on sale in the PSN store for 30 bucks, but I can't decide if I would actually like it that much. I love Persona, but I'm not sure if I'll love the puzzle platforming as much.
I can honestly say that Catherine is what got me into the 'new' era of Persona games (I played a few hours of Persona 2 back in the day and enjoyed it quite a bit, but my PS2 was firmly mothballed in a closet on the other side of the country and my finger was far from the pulse of gaming by the time P3 & P4 came out).
I don't want to build it into anything that it's not, I don't want to sell the game as some sort of high art or something that must be played...but Catherine's unique premise attracted me in a way games hadn't in nearly a decade at that point and the end result was me getting a Vita to play P4G and turning into the Persona fanboy I am now. The gameplay didn't intrigue me in the slightest at first, but I wound up enjoying it far more than expected.
It still feels weird saying that 3 games got me back into gaming...Red Dead Redemption, Skyrim, and...Catherine.
I can't vouch for Full Body yet, mind you. My preorder arrived hours after I left for 5 weeks of travel and I haven't had the time to go back into my queue since returning.