I bought this with a 20% off coupon, and at $400, it's definitely the most expensive piece of clothing I have ever owned. I bought the Everglade color, which is without a doubt darker-appearing than in the photo. I argue with my friends about whether it's green or yellow (the darker panels on the jacket are close to a dirty, swampy yellow with a greenish tint and the lighter panels are close to a dark yellow). Nice looking jacket, though, despite my use of the word "swamp" in the description.
The Medium fits me perfectly (5'11" 165 lbs), although it could be maybe 1 or 2 inches longer (my fleece layers poke out underneath if I don't tuck them into the snowpants). I can wear it with just a t-shirt underneath and it would fit fine, but magically, if I wear 3 layers underneath including a very thick fleece, it fits fine too.
Also, the collar/hood portion of this jacket is IDEAL. The hood fits over my ski helmet nicely, and the COLLAR ZIPS UP FULLY AND EASILY WHEN THE HOOD IS DOWN. This is a priceless feature of any jacket.
I have 2 concerns with the jacket:
1. For $500 (or $400, or even $300), you are getting a SHELL. It won't keep you warm. If you wear this casually around town in the winter (like, say, to a sporting event or going sledding with your 6 year old nephew), you will be cold. If you don't wear heavy layers underneath the shell, you will be cold on a ski lift or anytime you're not aggressively skiing. I'm just trying to warn people (like me) who are considering purchasing a shell for the first time. DO NOT PURCHASE THIS JACKET TO BE WARM - purchase it as a completely windproof, completely waterproof, well-made outer layer to be used during intense snowsports.
2. I understand Arc'teryx is trying to be minimalist with these jackets (not too many bells and whistles). But would it kill them to put a large enough pocket on the inside of the jacket to fit my goggles? I can barely fit my smartphone in these pockets! Good thing my gloves have wrist straps, otherwise I don't know what I'd do with those either when I'm walking around the lodge with a bowl of chili in one hand and my wallet in the other.
Overall, a few months and a few ski trips after I made this purchase, I'm happy with it because now I have a really nice shell that I can use in extreme conditions. But for this much money... make sure you wouldn't rather have something more versatile (warmer, more pockets) first. Or better yet, you can get TWO of something more versatile.