Played the multiplayer demo on my friends 360. I actually thought it sucked and I was really looking forward to trying it out too. Maybe live was lagging or something, but the controls fealt shitty.
The controls are a little tough to get used to. Your body moves semi-independently from your legs. Once you get used to it though, and start using the LB and RB buttons, it gets a lot easier.
It's been getting alright reviews. They say it's really awesome but does have some design flaws. Not like bugs or anything, like... stupid design choices that keep it an excellent game instead of an outstanding game.