This is a fantastic light-midweight jacket. I have had one for 5 years and it has performed in all kinds of weather conditions.
Light, packs small, warm. Despite how thin it is, it is for light activity use only unless its really cold-like say in the teens.
Great fit-trim with none of the down Michelin Man look. Can layer under it easily. I often wear Midweight Tneck, R1 pullover, fleece vest and this without feeling like Randy in a Christmas Story. I can also add my Gore-Tex shell over it for the coldest temps.
The best hood I have ever used. Most jackets it seems you fight the hood, in this it moves with you perfectly. That hood also really helps extend the range of this jacket. When its in the 20's and I am standing around, just zip up to stop drafts and keep the noggin warm.
As a bonus for large format photographers, I can fit a Fuji Quickload holder in the pockets of this.
My only downside to this jacket is I wish the pockets had fleece in them. At least my 2005 version does not.