I've been on & off it all day yesterday (sat) & today - Good graphics but not as good as Gears 1 graphics. The gameplay is just like every other fps. Its a good game, worth the £22.99 i paid for it at Amazon but its not as good as all the mags and websites make out. Multiplayer is just meh - naff, I felt like I was playing a poor-mans call of duty/halo hybrid, i played the multiplayer beta and multiplayer demo.
Single player is better than left 4 dead's, but left 4 dead's multiplayer is better than Crysis 2's.
If you like jumping great height's buy Prototype or Crackdown even, The nanosuit 2 jumping was lame, you don't jump very high.
All and all i think Crysis 2 in graphics on xbox 360 looks like Crysis pc from 5 years ago.