Im a big fan of the previous SSX games. SSX3 was the best on the PS2 for me.
SSX on the PS3 looks and sounds the part. I wont repeat the positives that other reviews have given it but I will chime in with a few negatives.
1. Some of the runs in this game are little tight and chock full of obstacles to the point where all you can do is watch your player bounce down the slope. The whole survive it focus of the game doesnt really work. Breakneck speeds and no room to move dont mix.
2. No respawn. If you fall down a crack in the run thats it, restart the whole race unless you use a rewind. Rewinds can be limited in their number but take ages to use and other racers just keep on going. If you need to use more than 2 you really ought to restart the run.
3. The deadly descent runs require you to keep an eye on something like your oxygen level, your temperature or using a wing suit. These interupt the flow of the game and quickly become annoying.
I think that in their attempt to bring SSX back the developers have thrown too much at it, its almost a sporting RPG as you have to buy and equip certain bits of kit just to be able to survive a run. SSX Tricky and SSX3 were more fun and the only annoyance was to be found in your choice of route down the mountain.
This seems like a step backwards for the series but thats not to say that there isnt some classic SSX like fun to be had on some of the runs.