Eyebrow Threading is an art form that doesn't take too long to practice.
It really helps to see how it works beforehand with tips and tricks and so here's a tutorial I did on youtube last year.
This is the only method I use for brows and upper lips. I'll post that tutorial too shortly.
I think this is an ideal product with results akin to waxing. Works on facial hair and fine hair too and over time, reduces hair regrowth. Done properly, this is almost pain free, quick, cheap and great result and no ingrowing hairs.
Here's my tutorial on how to do this at home.