I love this jacket. I've tried a ton of different jackets on many ski trips and settled on this one. Personally, the small fits me perfect. I'm 5'8" and 165lbs. It has just the right amount of bagginess and length for me. One thing I also really like about it over the other hardshells Arcteryx makes is the soft shell that's slightly lined with microfleece on the inside. It's not a huge amount, but I've found that it really gives that extra tad of warmth and softness that is really great to have on a long day riding cold lifts. It's a perfect winter shell, but I wouldn't use it in the summer or warmer months for this same reason.
Giant pockets fit anything in there, zippers are fantastic, material is bomber enough to scrape trees, and color is great. Love it.