med spas use all different lasers. ppl who get the best results are pale skin/dark hair. see, the laser needs contrast to work its best. but if you're dark skin/dark hair like me, ask if they use a YAG laser. Satori in NYC does a great job with their YAG. Maybe they can recommend a place in your city.
And, no, it doesn't hurt except for underarms. Asshole didn't hurt. Pussy did a little, but more twds the middle/landing strip which i decided to leave alone that way i can have a choice in hair.
you need 5 or sometimes a few more treatments for permanent results. most treatments are sold in packages for this reason. not sure what lower neck would run. but think of all the time you'd save in the morning grooming for work! that's how i look at it.
pain was minimal. i felt something being done, but no pain. they ice you beforehand anyway. also, avoiding coffee is ideal pre-treatment...to avoid pain if you're that worried. you're a lil red afterwards but not so much that you can't walk around grocery shopping. in a few hrs, i was back at my stripclub.