Very versatile. I have been comfortable at 45F with a sleeveless base layer and in the mid 20s with long sleeved merino wool base, and have no doubt I would stay cosy at even lower temps. Also very comfortable and a more racy fit than most winter jacket which I like. Finally sleeves are nice and long, avoiding the dreaded gap (something is a problem with the Castelli Espresso that I got a couple of yrs back).
Only "issue" is the color fiery red is close to orange - something that it is hard to tell from a website picture.