mine fell apart after about 3 short rides: absolutely rubbish.
Blimey! Mine are fantastic quality.
Well, I've racked up 30 rides in my two. I've been rained on and climbed 25% gradients in the blazing sun, and I can happily say they're the best riding tops I've ever owned. Incredibly, they still smell as fresh as the day they arrived. I think you'd only need a couple for a years riding without washing them :-0
My medium is a slim fit without being too tight (I'm 5'8" and slim). With some shrinkage to be expected after the first wash (3%?) the fit will be even better.
Highly recommended, but in my search for other merino tops I came across http://www.Rapha.cc