I can not attest to it.. but from my extensive researching.. I have been trying to grab an MSR Advance Pro 2 for the last 2.5 years. I finally got my hands on one.. ( well, almost.. its on its way and should have it any day now ). Like every single wall , alpine style climbing tent, it has its good and bad points. Extremely lightweight and packable, proven to work above tree line, fast set up ( easy to pitch? ) , free standing ( though in strong winds and snow you will have to deploy guy lines and stakes or anchors.) It is small for 2 people but from what I hear, if you are 5’10 or smaller it palace for 1. Its perfect size to pitch in small tight spaces, ledges on sides of mountains. There are so many choices. I have Black Diamond Bibler I-tent that I looove.. total bomber, and i dont even mind the near 5 lb weight.. but it is very bulky to pack and when its frozen from snow and ice.. well.. its even more hassel, though it will keep you protected in the worst of them. Then Last year when I could not get the Advance Pro 2, I settled on the Black Diamond Highlight 2P. I really like that, its kind of a lightweight, packable version of the Black Diamond Ahwahnee tent. I love the huge side entrance and it has mesh on that door and also the back window vent. A palace for 1 person for sure. Plenty of ventilation. Its free standing and the poles get pitched inside. Simple and fast to get it set up once you do it a few times. It. It packs nice and small and does not weigh much. I was planning on using it this winter, and I probably still will, but I was able to finally get the Advance Pro 2, so I will see which one I like better after a season or 2 of use. I dont do any serious alpine climbing but I do try to get out in some legit winter blizzards and will gladly take either of these tents with me above treeline in a storm in the Catskills or Adirondack Mountains. Again, I dont plan on using them unless its a legit snow storm.. with snow, ice and wind. Wish I could give you more info.. but have not put them to the test yet.. However, i do believe they are worth consideration. Though the Hilleberg tents are proven also, the weight and price kept me away.. especially for my plans, they would be overkill.