Bought this tent for a Denali expedition and have also used it backpacking & for summer alpine adventures (above 9,000ft).
For Denali, I was glad to have brought this tent & would bring it again. I put seem-sealer on all the seams for extra strength, brought lots of guy-lines (only ended up using about half of them), and practiced setting up the tent on some backpacking trips to get a feel for it. On Denali, I really appreciated how fast it was to setup (about 5 minutes) so we could get out of the cold faster. It had lots of strong & reinforced tie-down points (appreciated their toughness as pulling/chipping frozen guy lines out of the ice wasn't always easy). The tent poles/structure is pretty rigid when setup & the tent fabric is also pretty taught when setup so it didn't need much guying out and it didn't move/shake as much in wind (ear plugs were still nice for high wind). The bright yellow tent material was great for team moral on stormy days (always feels bright & sunny inside the tent). The yellow Todd-Tex fabric felt pretty tough and waterproof (the yellow Todd-Tex fabric over the main body seems more waterproof than the grey vestibule material which feels like it maybe has a urethane coating on the inside). The yellow Todd-Tex fabric did get a lot of frost/condensation by morning (mostly just by our heads). I brought a spong to soak it up, and that worked perfect. The tent fit 2 very comfortably with all our winter-camping gear inside along the perimeter of the tent. Fits 3 with some winter camping gear in both vestibules. We fit 5 with no gear in the tent while playing cards during storm days.
For non-snowy summer alpine adventures (above 9,000ft), it fits 3 very comfortably with summer gear in one vestibule. Can get a little hot inside in the middle of the day, but it's nice to be a little warmer at night. The large vestibule has a U-shaped zipper that is a little harder to enter/exit in the summer (b/c you can't dig a snow pit in front of the door), so I usually have guests use the other vestibule (with the straight zipper) to enter/exit.
