VERY frustrating, but it is still fun and SSX has always been a fun series to play!
I would recomment this as a solid rental as it can have some giood play value but will get old after a few days or hours of playing. You will have a blast runnign through teh courses but they do get iold after a while and run out very quickly, there simply isn't enough more stuff to offer up in the way of more courses.
There are definately some clumbsiness issues with the way that the game controls. My wife had a hell of a time getting most of the spins and controls to work well for her but for me they were pretty easy and therefore I would give it a mixed results in the control department.
Graphics and sound quality is pretty good and surprisingly well done for a wiigame and the environments are well thought out but they do get old and repetitive.
Definately try to rent this one for a week to get the feel for it and enjoy it while you can, because after a while you will put it down and get bored with it. Give it a try tho!