I'm very happy with my purchase. The quality of the shirt is fantastic and it will prove a versatile piece in my wardrobe. Customer service was prompt and helpful with sizing advice although, after further research, I did decide to size up from the XS suggested to a S. I'm a UK size 10, weigh about 60kg and am 5'5'' tall. However, I am broad through hip and shoulder and the shirts are not actually very oversized in width. Most of the extra sizing is in length. If I'd gone with the XS, I think I would have ended up with a very long narrow shirt, which would have looked odd and not draped correctly over my hips.
S