I received this jacket as a gift this Christmas and I have used it nearly every day since for running (I live in the NE and like to run outside year-round). Even with the Artic air mass that just moved through my area and the sub-zero windchills, I was able to run comfortably with only light base layer and this jacket.
At first I thought the hood was a bit floppy, but I certainly appreciated it last week I was running in the rain and snow. The hood's design is amazing - the cinches keep the hood in place even with lots of movement, and the mini-bill keeps the weather off your face.
Unbelievable water and wind resistance, superb breathability and so sleek!