I am 6'5" and 200lbs, and the XL fits perfect (I wish my Siphon Primaloft jacket fit this good).
Super comfy, soft and warm, the hood is the perfect size, and the nifty hidden thumb-holes in the sleeves are a nice touch (although a bit small for my thumbs).
The two slight misses though is the lack of a drawcord in the waist, and the mesh backing in the pockets.
The bottom hem is fine, but with out a little elastic or drawcord, kinda curves outward, but just slightly.
I read another mesh pocket comment before I bought this, and thought the guy was just being picky. BUT... he was right, the mesh pockets offer no warmth to your hands. Its hard to explain, but its true.
Other than that, pretty spot on hoody!