I've bought 5 of these so far- three short sleeved and two long sleeved. One of the long sleeved was 3XL and too large, but still wearable for him. I might make it into a dress for me, though.  :D  The 2XLs fit very well! He's 6'3" over 250lbs. The shirt is plenty long enough and round enough. No chintzing on the amount of fabric used in construction like other cheaper manufacturer's.  The sleeves are definitely long enough for him as is the body of the shirt - it doesn't come untucked- yaaay!

Two issues, however that prevent this being a 5-star rating:
1)  In two of the shirts, there's an odd lighter streak going down the front plackets. It's not an intentional design, perhaps just strategic placement of a less desirable artifact of the fabric coloring.

2) this one is soooo not good, but I'll fix it before it's unusable (hopefully):  There is serious weakness of the fabric where the upper corners of the pocket are sewn to the body.  This is a location that really needs to be reinforced in the production process.  I've seen other shirts with extra fabric added for strength underneath those spots, as sometimes under buttons and patches. I noticed this as I was ironing it. When held up the light to inspect more closely because I wasn't sure what I was seeing, I could really see it looks thin there. Not sure how or why since these are unworn. This is after the first washing and before the first wearing.

Bottom line: I'll probably buy him a couple more of these shirts.  :)