I'm 6'1 175 and the medium fit awesome, except for the butt (which mine may be large for a medium) which seems to not be a huge fan of me sitting down and it having to stretch (zippers weren't made to stretch). Other than that it's amazing, I'm debating picking up 6 more so i can wear a fresh one every day of the week, it perfect as a baselayer for the slopes or as comfortable jammies to wear around the house and weird out your housemates.
And can it really get any better than pterodactyls? Only they make a triceratops version. Or Megalodon.