Fine. Thinner and not as pretty as Brooks Brothers, although I wasn't expecting that at a third of the price. Better for the summer than the heavier Brooks Brothers shirts, but I still don't wear oxfords in the summer.
Pros
First I bought size 16-16.5 31-33 sleeve and it turned out to be small. Then I bought sleeves 16-16.5 32-34 and fit comfortably.