I played it on my roommates Xbox. It didn't have any framerate problems that I could tell. I was deffinately expecting a lot more from the game. The "destructable" enviroments aren't near as destructable as one would hope. In fact, you can hardly destroy them much at all, it just has a lot of particle effects so it looks like a lot of debrees.
Gameplay is alright, for a console. It's funny to me how blind console FPS players are to the beauty and amount of control with a mouse and keyboard. In black it's like cold molasses trying to look around... oh and aiming? forget about it. I think that's why they give you so much ammo through out the game, becuase aiming is too frustrating. Once you play some FPS's on the comp there really is no going back... and Black is no exception.