We had our son's 7th birthday party here. The donuts are great fun for kids and grown ups!
There is a special slope for the donuts, so you don't get tangled up with the skiers and snowboarders.
I haven't tried the dry slope skiing, but it looks like they have a good slope and ski and pole hire available. There is a bar/coffe lounge and outdoor patio area for refreshments.
We would definitely go back for another go on the donuts.