The only thing that bothers me about the demo is the camera...it's almost impossible to judge height and distance when the camera is 3 inches off the ground. Other than that, it's awesome. I really like the grind system, just jump onto a rail and balance naturally. Manuals are way too easy now, though.
stylistically, i like it; it's got the feel of the standard skateboard-cinematography method of someone skating behind holding a camera down low; sort of reminds me of the roadie run; i like the look, but yeah, it could make gameplay a bit tricky; then again, not knowing what's coming up is cool