I have been waxing for many years.
I have gone to the salon & gotten waxed, I used to go to this lady's house who did it for cash, but I moved and I have bought the off the shelf sugars and waxes.
Here's my experience:
Legs - a little painful the first time, but now I hardly feel it.
Arms - I feel practically nothing
UNDERARMS - OUCH. OUCH. OUCH. and takes a LONG time, and you have to pull from all sorts of directions because the hair grows in different directions
UPPER LIP - never tried but I heard it hurts
EYEBROWS - OUCH OUCH OUCH - and it pulls your skin so it can stretch. Suggest tweezing or threading instead!!!!!
V-jayjay - The closer you get to the back, the less it hurts, but man this is frighteningly painful. YOU REALLY need to trim the hairs first. (to 1/4" or thereabouts). Like the underarms you have to pull from all directions as the hair grows in diffrent directions. DO NOT USE SUGARS.. actual waxes use best because the hair is coarse and hard to pull. The more you do it, the less it hurts, the warm wax sooths the pain so the pain is short.
With waxing, the hairs grow back less and less. I have 1/2 the hair on my arms that I did when I started waxing them and i don't do it all the time, just when I feel like it. I have patches of hair that no longer grow on my legs. I tweeze the brows and shave the pits (because I figure I'm in the shower anyway, why go through the pain).
Trick is, thin layers of wax/sugar and quick pulls. Also, trim the hairs to about 1/4" in lenth and it will be easier and less painful (except legs and arms because that's just too much work).
LOL.. its like I wrote an article! LOL
I haven't tried this yet, but I do plan to!!