I bought the black shirt, in a medium (I usually wear small). I did notice that the arms are a bit snug, but it's still perfectly comfortable, so I don't really care. Also, I'm not super fond of the gem, but it's subtle enough that I don't mind anymore.

I love the fabric. It's very comfortable, nice and soft. The length is great and I'm so happy to have the kind of shirt I've been looking for! I wanted something in just this style, and it looks great with so many different outfits! It seems durable and flexible as far as what I can pair it with, so I've ordered three more in different colors! I did go back down to my normal size, though, because I think I might've made a mistake getting a medium.

Edit: Having gotten three more shirts in white, red, and navy, I'm glad I ordered small this time! It's not too tight, and the arms still feel fine, but now the shirts hug my waist a little better. I am definitely happy with the purchase! :)