User Review: Mountain Hardwear Trango 3.1
Three of us used this tent and two of us hated it. The two sleeping on the side of the tent. We couldn't sit up at all. The tent is just above your head. Trying to get out without being able to sit up is ridiculous.
Very heavy, but it is a bomb-proof 4-season tent. Those two things usually go together. I think it is better to get a very light 3-season tent and use it all year around or if you like, buy a light Bibler for the winter too.
If you happen to be the one sleeping in the center and don't mind being stepped on, you might like this tent.