I tried the demo, and, although darkslides and underflips are kind of doubtful, I liked it anyway. The only problem I had with the HoM was that, whenever you trigger bail, you literally jump off of your board. It's like hippy jumping minus some gravity.
Still, I'll have some fun with it when I buy it. I'm gonna miss the cameraman for skate 2, though. I liked him. :(