It's so fast it is "oowww!" and that's it, rather than "oww oww oww oww oww oww", I vote for one big ow over a series of short ow's.
Any waxing hurts the first time, when those big lumpy hair bulbs are being ripped out of the skin, the next time, the hair will just slide out and be pretty painless (as long as you don't leave it until they are big lumpy hair bulbs again) Male hair in particular seems to be affected by gravity over the years as it slides off the scalp and onto the ears, nose, eyebrows, shoulders.... Ear waxing is also painless (after the first time!)