I had a couple failed prints between trying to print it face up and using some filament that had absorbed too much moisture. Dry filament, inverting the mask (face down), and using tree supports (25 deg. angle) made for a pretty clean print. All in all, I'm pretty happy with it, except that the outer edges don't fit my head shape well. I'm going to scale it down for my kid and paint it for Halloween. Printed at 0.15mm.