The vast majority of men circumcised as adults have had it either because they had a condition that required it or they wanted it for whatever personal/cultural/religious reasons. As such, satisfaction among this group should be rather high. There’s hardly anything wrong with this either.
It is however a different story for those done at birth, albeit most are probably indifferent about it.
At the end of the day, I feel we obsess too much about it. Cock is cock, foreskin or not.