I have never been to Stevens, although I will go this year for sure, (I can drive now).
But, if you are in the area for a few days, I would deffinatly check out Mission Ridge in Wenatchee, WA. Wenatchee is about 2 hours away from Stevens, then MR is about 30 minutes from Wenatchee, (follow the signs in wenatchee to get to MR, pretty easy.)
Mission Ridge is a "hidden gem" in washington, It is said that if you can ride mission ridge, you can ride anywhere. MR has all terrain from chutes, trees, easy slopes, double black diamond killers, and some amazing back-country powder. Last year we had some of the worst snow I have ever seen, but this year is looking like it will be the bomb.