I'm 5'6" and I'm crazy about most "small" shirts. Rather medium/large though. Quality was ok as you would expect but not sure if it made it to the small Aim 6'0.
Pros
This is the first time I buy this brand and it is very good.
Cons
I would order a size up for a slightly looser fit like t-shirts, but for men who like a tighter fit it's perfect.