I play it on the 360...and it kicks ***. I'm going through it the second time on the harder setting now. The Vita Chamber system makes certain things too easy, but it DOES make up for the limited ammunition and such.
The DRM stuff is unfair, as is the PC widescreen problem. It is NOT like a cartoon, but I think claims that it has better graphics than Gears of War (on the 360) are a little stretched. Whatever. More in the morning....