I love this jacket. It fits great, it is designed great, and it looks great. I have only used it skiing so far, and some small hikes, but it destroyed the wind and light rain I put it through. I really like how the chin guard is lined, and how high up the neck zips to keep me warm when it is windy. I am 6'4" and 195 lbs, with 37" arms, and I got the XL. It has PLENTY of space for a down coat or other layers underneath and has perfect sleeve length. The large would have fit a little tighter, but I wanted longer sleeves, and layering ability.
I got the bonfire color and it is great, not too bright, just right. Love this Jacket. I try to find excuses to wear it whenever I can.