Snow coverage is good. There has not been much snow recently and it has been warm, so the groomers are skiing best.
I live here so I haven't flown in, but it depends where you are coming from. Flying direct us great if you can get a non-stop flight (Seattle, Oakland, LAX). Otherwise it might be less hassle and expense to fly to Boise and rent car or take a shuttle. That is what I used to do before I moved here.