I read the reviews on wiggle.com. They were almost too good to be believed, so I bought it. Those reviews were spot on: it's a very nice jacket with the quality-construction I've come to expect of Gore. It's expensive, but it's worth every penny. Very warm, even at 32 F/0 C. It's too warm for anything above 65 F, but you can wear it at that temperature as a long sleeve jersey (with nothing underneath) and just open the chest and arm vents.
It's snug, but the size chart is accurate. I especially like that the arms are longer than usual, so they don't ride up when you're in position on the bike. The fourth "secure" pocket (has a zipper) is a nice touch. I don't have to worry about my keys, phone, wallet falling out.