I bought this from Bonktown and was very happy when I got it. I normally wear a medium but on reading the reviews went up to a large which was the right choice - it's close fitting on me, a medium would have been too tight.

I wore it today for only the second time. Whilst it was nice and warm, the zip parted at the bottom and came apart. So, great jersey, appalling zip. Too bad, I really like it otherwise. Without the zip issue this would be a five star jersey.

Overall I'm very impressed with the quality and "wearability" of this jersey. I've worn it under a lightweight vest for commuting when it's been about 40 degrees F, and by itself when around 50. Having a full length zipper aids in regulating your temperature -- as well as putting it on. As some others have noted, it can be a bit tight on the upper body: I'm 5-8, 170, and have somewhat wider shoulders (I ordered an XL). I find a bit of tightness under the arms, but on the bike it's not too noticable. Were it not for the sizing, I'd give it 5 stars.

I got this jersey in size XL after reviewing the size chart and the recommendation to size up from normal sizes. The size chart was accurate and the jersey fit good on my chest and was nice and long in the body and arm. The shoulders are pretty narrow though, and I have a medium build. If you have broad shoulders this isn't for you.
The jersey itself is constructed nicely. The fleece is soft to the skin and warm, it wicks sweat surprisingly well. I like that it has ample arm length so it can be tucked under a glove. The full-length zipper has a cloth backing behind it for warmth. If you are in cooler weather you will want to layer this with a vest or jacket, or a good base because the wind blows through it pretty easily.
I was going to give it 4 stars and not 5 because of the small shoulders, but am giving it 3 because the zipper is low quality and has been separating on me. This jersey is a pretty good price though.

I bought it for my hot husband who has been cold lately. The soft fleece inside keeps you warm. He likes the complete zipper so he does not have to lift over his head. I think he looks hot in it!