My first bivy
I was happy with this purchase. It was easy and fast to set up (after the first time). I experienced a little condensation on the inside, even sleeping with the tent open about a foot down with only the screen up at 12,000ft and probably 35 degrees out. I never fully tried it yet with it fully closed, but imagine it would be worse. I imagine if you were snow camping with a down bag, you may have problems with moisture. Overall, I feel it will work for me for any backcountry adventure. Having a few vents is a good suggestion from the previous reviewer...that would make this bivy Bomber.