Really liking it, took a few runs to really begin to get even a small grip on the controls, but some of that SSX muscle memory is coming back! It is so fast, I found changing the camera to the furthest out helped me a lot. You can change direction so quick the closer cameras can't keep up a lot of the time. Struggling a little with the tricks, like others have said I'm doing them, but I don't really know what I'm doing.
I do like a lot of the little touches in the game, the pieces of flare are really cool and satisfying to hit, and I turned all the music and radio chatter off to just hear the games effects, they're not as pronounced as SSX3s but they're there, and the acoustic effects on the voices are really well done. I noticed the firework sound effect when you finish a race sounds exactly like the one from SSX3 too, only there's like...1 firework. I like that the menu sound effects are similar to the old ones too, nice little nods all over the place in this game.
Definitely going to buy the game, I can only imagine it gets better. Every now and then the game would click and everything would go right, and it felt so good. Seeing the characters pull off those crazy poses while spinning in every direction, followed by hearing tricky literally put a massive grin on my face, something that hasn't happened with any games for a while for me.
No PS3 performance issues to report either, very very minor pop-in once or twice in my last hour with the demo.
Side note: I don't get you guys moaning about the PSN download speeds, I'm in the UK and downloaded the US demo in about 15 minutes, and I have shitty University internet! Maybe it's just luck..