I'm just started playing Persona on the PSP... I can't believe this game is 20 years old but sometimes, yeah, I can definitely believe it >.<
I'm enjoying it - played it for about 9 hours straight yesterday and not tired of it yet. Feels so good to play something on my PSP again and finally making use of my component cables!
The only problem I have with the Persona port on PSP is the music change. Very happy there is an audio option in P2: IS for the original soundtrack, albeit its just remixed tracks as opposed to the whole new OST they did with Persona 1. The component cables for the PSP are very nice, I've got a lot of mileage out of mine. Have fun and check out the P2 duology next if you can/haven't, my personal favorite in the series.
So far the music is great for me but the repetitive battle music sometimes can't be tuned out, ha. I do indeed own the P2 games (IS on PSP and EP on PS1) and hopefully will not be burnt out on Persona by the time I'm done with 1! The animation sequences for the PSP port are pretty nice, too, but I haven't seen any footage from the original PS1 version.
I feel the atmospheric OST of the original Persona 1 fits it much better than the Jpop in the PSP port. It's really a shame we didn't get the updated EP on PSP in English, the slooowwww system of the original PS1 version is hard to go back to after the revamped ports.