Okay I'm not going to lie, it hurts! It feels like getting snapped with a rubber band, so with that being said I've really only done armpits. There's a small change so far on week 3, curious how it'll be week 8. Overall I think I would have liked a tutorial video or something. I think the minimalistic instructions are really cute but the first week I had no clue what I was doing and had to start over on week two after a lot of my own research online about exfoliating.