Tom Watson wrote a review of Arc'teryx Peakline Shirt - Short-Sleeve - Men's on June 4, 2013
I bought multiple shirts (blue, red, green) and after only a couple weeks I began to notice pilling on all three shirts on wear areas. The pilling happened on the back where I wore a light day pack on a vacation and toward the bottom of the shirt where I guess it started pilling just from having stuff on my lap. Definitely disappointed this would happen on Arc'teryx gear at this price point.
The picture is after the shirt was worn maybe 8 times so I can only imagine it will get worse over time.