If you got a hairy ass face, keep shaving.
As for your eyebrows...
1. I do, its painful the first few times but like most things once you get used to it, its o.k.
2. It takes 10 minutes.
3. R40 where I come from.
4. Erm, About once every 3 months.
5. Dont do it by yourself, if you going...