The cold weather hit this week and I finally got to put this jacket to the test by actually biking to work in cold weather, as it's intended to be used. And I am very pleased. The fit is very "modern" and looks great with your typical casual to business-casual attire. The material is super thin and stretchy so you don't feel bulky and there's absolutely no restriction of movement. It is super thin and light so it does not offer much for insulation, but blocks wind super well. Not going to work for sitting down watching a football game, but perfect for sheltering you on your way in to work, to the bar, to the store, etc.
I've only owned it for a few weeks, but I've had many other Arc'teryx pieces and can say with great certainty that quality and durability will not be an issue.
If you like the style, I would highly recommend picking one up. Fit is true to size, but the cut is definitely slim.