Definitely has the best feel of a modern snow game. The game is in alpha, there is no sound, yet I still enjoyed every second skiing down the mountain. If you like skiing you will love this even in its unfinished state. It can only go up from here.
Edit: So I'm going to add a little more to this review because apparently people are actually reading it.
Here's what you can complain about: Lack of sound and snow effects.
Sound's no big deal, just play some of your own music in the background for now. It's the effects that really throw everything off. Your character is basically just on the mountain, as of right now there's no interaction between the skis and the mountain; no tracks, no little specks of snow going everywhere as you might expect from skis in snow. But I'm sure that's in the works, and honestly once the sound and those little effcts are in the game is more than recommendable if you enjoy the winter sports.
There's a little bit of a learning curve but I'd venture a guess and say it's easier to learn to play this game than actually ski.
Earlier today they put out a big update and really cleaned up a lot of the UI. The menu isn't all over the place and flicking out of view and they have the basic framework down for the multiplayer. It's looks really promising.
Now of course there's bugs here and there, the previous update completely broke the options menu but I have yet to encounter any crashing while actually playing the game itself which is something.
As I'm writing this there are no negative reviews so that should tell you that yes, if you're unsure whether or not to buy it and it seems interesting, but you're afraid it won't turn out great down the road; I'd recommend it even in it's current state.