So far it's identical to it running on my PC in full. A slight issue with V-Sync catch up - better than shearing though, it does this on my PC and on my friends so I assume it's the game rather than any issue the 360 has

Edit: I do miss the resolution on my PC + it's gonna be cheaper. Also I think it may be because the game is set to run in 4:3 on a PC but on this as you look round you get that effect like when you stretch a 4:3 game like Halo to 16:9. It goes all kinda warped when you look left to right. A bit like tunnel vision. Hopefully this will be fixed by the time it comes out.