Let's talk about the shadow side: I think the proportions somewhat critical. Short to me - I am ~ 1.80m tall, weigh 74kg and have an athletic build, but am not overly "inflated". Nevertheless, I do not the shirt size. M (usually exactly my size) to upper arms and neck borderline closely while in the belly - fits well and chest area and on the length. Gr. L would be so I guess too big for me. So recommended for muscular people rather restricted, so even 2 star deduction.
I'll keep the shirt anyway, since it is up and running (in the gym I feel so ridiculous in front, acting as I wanted to with the tight shirt my upper arms present) and the effort to send it back to me not worth it.