Personally, my Copper Spur ul2 (which I share with my partner on our treks) has gone across america, Canada, Iceland, New Zealand and Korea. Our tent took the worst battering in Iceland, with very strong winds and ice rain bombarding the tent all night, one of the vestibules unlooped from a steak during the night but this was my own error by not staking out the tent with enough tension, the tent performed really well and took no damage.
The lightweight design of the tent comes at a cost, durability, as you can read on a review at outdoorgearlabs. Personally I take care of my equipment and have not had any issues with rips or tears, but you can definitely notice the thinner material used in the tent. The tent is high so you can sit upright and read, and spacious enough that you don't feel cramped. Having two vestibules is really good, as each person has their own space with their own gear, and doesn't make the tent feel crowded. Personally I think the quality of Big Agnes tents is very good, but there's plenty of great suggestions in this thread. I would recommend going to outdoorgearlab and checking out their reviews
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