Persona 3 has a pretty horrible battle system for a turn based game; I honestly don't know how I can forgive it despite this huge flaw.
I don't know what Persona 3's battle system is like, but I've played Persona 4 and it doesn't seem
too bad. It was a bit awkward and it took some getting used to but other than that, it's meh. I eventually got bored of it, though. xDD Persona relies too much on life choices and I don't want to screw up on anything, and just about everything/anything you do determines the direction the games goes in, so with that in mind...yeah, and being a perfectionist, I want to make sure that I get things done so I would get the -good- ending of the game, and not the bad ending.
Grinding in that game is also a pain in the ass, might I add.