I think the Persona 4 anime will be good. It seems like it's going to be a faithful adaptation, and it was more of an anime inspired story to begin with. Persona Trinity on the other hand, I wasn't too fond of. It was just kind of meh.


EDIT:

I love the new trailer! Opening theme, Nanako, and everything!
http://www.youtube.com/watch?v=v3v-QP6MCAA