I was afraid I was not going to like this shirt or that it would not fit, but it fits great.  I am (US) size M and I ordered the (Asian) XL.  I love the design and it is definitely out of the ordinary, so most often than not people will look at you and say compliments.  I agree that the sleeves are a bit tight, especially in the elbow area, so I suggest you order 2 sizes larger than your US size.  I am deducting 1 star because the quality of the fabric is a bit on the cheap side, but not terrible.