I got the denim one and went to Park City opening day last weekend. It does have a powder skirt, it is not removable either. But i for sure dig it. It does offer a bit of insulation, but nothing substantial. I just treat it like a shell, and I was just fine.
Colors-The Grape Get Rad is just that: Rad. I didn't get it though because it was pretty nuts. I wanted to wear this around civilians, so I ended up with the denim color. It's more like a dark grey, almost black. I really really am happy with it!
By the way, this was my first time snowboarding...I know I suck =)