I have had my underarms, lower back and legs done. I'm really happy with the results - around 5 hairs under the arms, the only hairs left on my back are blonde, and my legs have had a 70% reduction but I still have around3 treatments left for them.
I did however switch companies as the first company I went to badly burnt my back to the point it scabbed and was scarred for 6 months, but it's ok now. I have black hair and light olive skin.

To cope with the pain I use numbing cream and it helps to lessen it quite a bit. After I finish having all my kids I will do my tummy as well, since during my pregnancy with my baby I grew hair there so another part to add to the list