If the person doing the job is on your wavelength then this is very true. Otherwise it is just painful and awkward.
Or maybe I'm biased from having known stylists intimately enough for them to cut my hair while I was naked in the middle of the night. But seriously there is something to having someone else run their fingers through your hair and the process of clipping makes your scalp so much more sensitive.
But I prefer to do it myself these days.