Nobody does down fill like MontBell! The materials used in this jack stretch to fit one's shape exactly. When you first put it on you feel all puffy like that little fat kid from South Park, CO but, within minutes, you are truly one with your winter layer.
As others have stated, at first I thought this jacket was short in the back. But this no longer bothers me; I actually like the shorter fit. I'm assuming MontBell made the shorter back so the jacket could be used under a weatherproof shell (no need to have your insulating layer hang out).
I checked out this lesser-known brand after owning a MontBell hugger sleeping bag. This jacket contains the same quality and warmth as MontBell's bags. The only downside is I never want to take it off; even indoors. Nothing quite compares to the natural warmth captured by real goose feathers! And it is nice not wearing the same brand name (Arc'teryx, Marmot, Patagonia, Mountain Hardware, The North Face) garment as everyone else at the cafe and lift line.