I've been using this to commute for a couple months now, traveling north out of NYC 30 miles each way, a good mix of city and highway, with some spirited riding on the weekends in some twisties. I chose this jacket as I needed to cover all possible conditions between freezing and ~75 degrees.

After a couple months now, I'm extremely happy I went with this jacket. The insulation is very good, in freezing conditions you should simply wear a shirt, hoody and this jacket will keep your core warm impressively. There doesn't seem to be any leaks for wind or rain to seep through. In an absolute downpour the only place rain got in, impressively, was right under the chin, and a very tiny bit on the zip of the arm. Under normal rain conditions this jacket keeps you bone dry. As it gets hotter, after unzipping the insulative liner, open up the 2 front and 2 back vents and then the 2 arm vents and it had excellent ventilation. This could arguably almost be a 4 season, but I think anything above 80 or 85 could get stwamy.

This appears to be an amazing jacket for those that ride in all conditions. I suspect paired with the vapor 2 pants this would be a dream team for rain / freezing commuting that will take you through to the summer months where you should have other gear

I am 5'8" slim and do casual weightlifting. I bought the small and it was a tad tight in the chest. I got the right size but be aware it runs a tad on the small size in my opinion, in case you usually are 'in between' sizes.

The protection feels great without preventing mobility. I put in the back protector which does not impede my arm movement. I ride a vfr so cant speak for commuting with those ergonomics, but I do not see it being an issue, and this is with it already a little tight.

The one thing I suspect might be it's fault is the interesting rubber material front air vents. I am suspicious these will not stand up to time as well as zippers, but while they do, they will be better at their job of protecting you from the cold.