For me, it's the massage! That can kind of make or break what I consider to be a good facial. I had a facial recently where the girl did a pretty decent massage, but it was towards the beginning of the treatment, right after exfoliation. So then I had to sit through painful extractions immediately afterwards and that definitely killed my relaxation, haha. So a good massage, done at a logical point in the treatment! :)
My favorite part is learning! There is always something new I take away when receiving a facial whether its something to do or not to do when I'm giving the facial.