I got mine yesterday and have to say, this game is STUNNING. I'm amazed at what they're able to do with the PSP hardware. It looks so much like the PS2 games and runs smooth as butta. Plus they nailed the controls fairly well.
I'm kinda weary about dodging by holding both shoulder buttons, since it's a strain to grab both in the middle of combat, but it's not too offputting. Also, context specific actions with the O key don't always work. You have to be facing the object just right to get him to grab on.