Great Winter Layer
I bought this for a lightweight instulation layer. Its weight is very similar to the Patagonia R1. The biggest difference is that this jacket is a fleece which also provides pretty good wind resistance. Unlike many fleece jackets, this would make a passable stand alone jacket during the wintertime. At 6'3", 175lbs, I often have issues with sleeve lengther. I bought this in size large and it fits my slender frame well and the sleeves are long enough for me to utilyze the thumb holes. The inside has a soft, fuzzy surface which provides a very cozy feeling. The hood is obviously unconventional, but functional. In cold windy conditions, it makes a passable baclava, but does not quite cover my nose. It makes a much better neck gaiter. I had concerns the high zipper would irritate my neck when not zipped all the way up, but I've not had any issues.
I've thought about using this for a running jacket, but likely won't. I love running in a softshell as they provide good insulation while still breathing well and keeping the wind and rain off you. A good softshell also gives your skin a little room as shells aren't intended to hug your body. But, I think this jacket is still more fleece than softshell. I think the fuzzy interior surface would feel too "huggy" and "muggy" once you got heated up and sweaty.