Well, only been out once so far, about 25 degree weather tent camping in the snow in VT. Totally warm, and roomy enough for my 6'6" 205lbs. Zipper did snag a lot and seemed to be a lot of moisture on shell, though didn't penetrate. The shell is quite thin, 15 Denier. I am a bit apprehensive if I was staying out for several days whether moisture would penetrate. I will update this if I learn more.
This review was written in the old system and had content requirements that are different than reviews written today.