A great 3-season sleeping bag!
I've used this a couple of times now, in temperatures ranging from 30 - 100 F. For obvious reasons, it does best in the 40-80 F range for me - anything below that is just way too chilly, and anything above that is oppressive. Bu unexpected heat waves or cold snaps aside, it's worked out really well! The first sleeping bag I ever owned where I don't wake up multiple times in the night, twisted up in what feels like a strangling hug. I love the foot vent - even though I sleep cold, it is a pretty awesome way to regulate your own temperature, and I do use it, so I can only imagine how helpful it would be for someone who sleeps hot.
Would recommend to a friend.