Great piece of gear
After a year plus of use, this piece works fantastically with my layering system for backcountry skiing. I wear this for the skin in/up, usually with just a t-shirt underneath. I move fast and this blocks enough wind and snow, allowing me to stay warm and dry. During breaks, or for the ski down, I throw on a synthetic puffy and let 'er rip. Once I'm ready to climb again, stuff the puffy and I'm on my way - simple is smooth, smooth is fast. It breathes really well, although I occasionally have to unzip the front.
The piece is well made and well thought out - very minimalist. I'm 6' 180 lbs and the medium fits like a glove. The hood is warm and highly adjustable, but not helmet compatible. (I've never found myself needing a helmet compatible hood, however.) This piece easily gets 5 stars.