Works exactly as advertised. Used it overnight with my flex 15 quilt as well as in camp one morning. The arm chords really make a difference in terms of the hood moving with you when you move your head. The overnight temperatures the last night of the trip were in the mid teens, so have no fear about this or any other piece of katabatic gear living up to the temperature ratings. They have a well-deserved reputation for being conservative.Also, if you get in a time crunch and need this or any other piece of gear for a particular trip you can count on them to be honest with you about their ability to get you the gear on time. My hood arrived the day before I was to leave, as promised. Kris and Aaron are good to their word. The workmanship on this hood and my quilt are impeccable.