+1 on the Tarptent Notch. I borrowed a friend's Notch for several trips last year and finally bought my own about 3 weeks ago. As Dave said, I have not found a better 3-season shelter when everything is taken into consideration: ease of set-up, weight, price, function, versatility, dual vestibule, double-wall, dual entry, etc).
There are many reviews on BPL regarding Tarptent, and I never remember coming across a complaint in regards to durability. I'm not saying there are no complaints, just that I have never read one.
One caveat: I hike with trekking poles. And the Notch does require trekking poles.