I have had a Trango 3.1 since 1994 or 1995. I live in Alaska and used to use it exclusively but bought a larger tent when the family grew. I still use it for trips for up to two people. It has never leaked or been challenged by the wind despite all Alaska can throw at it. In fact, it is in my truck box now with all my other survival gear in the event of a major earthquake or avalanche and I am stranded.
The folks at Mountain Hardwear designed it right.