So this game is pretty good on 360. I have no doubt the PC version will be better especially as aiming on the console is atrocious (and although it's barely noticeable unless you look, the draw distance is pretty short), but I actually really enjoy the gameplay. I think the nanosuit adds a lot (comparable to, maybe better than Crysis 1) and it helps that most people on Xbox Live have the IQ of my upcoming bowel movement. It really is a bit more of a thinking man's game than Call of Duty, especially with the use of cloak. Don't even get me started on how much better it feels than Halo Reach multiplayer.
There are a couple nice touches, your characters have a lot of context-sensitive dialogue to each other (thanks, man, after an assist, comments on how the match is going) and that's pretty cool.
Demo does freeze a lot, which a console title should never ever do.