If they're good, it's pretty quick. My brows were a bit of a mess, since I hadn't had thenm done in a while - it probably took a bit longer than usual. but if you get it done regularly, it's pretty fast.

Do they do one hair at a time or a bunch of hairs?

I've heard that this is a better method than waxing...I loathe waxing and plucking! Urgh!

I have eyebrows from hell..with minds of their own!

They get a whole bunch at once - hence the slight discomfort, but the speed. I'm a convert!