If you wax or epilate (wax before epilating!), it will sting the first time, but it does not last long and is worth it!
If you do it regularly, it will get less and less painful, (3rd time was nothing for me) but if you wait the pain meter starts to rise again so stay on top of it. I have noticed though after doing it for a few months, that the hair on my legs is growing a bit slower (woohoo!).