The device is super easy to use. The light doesn’t burn if you’re using it on the right setting. The only bad part is the amount of times a week you have to use it. Actual laser hair treatments are once or twice a month but with Nood you have to use it two times a week and if you’re anything like me, routines are hard to set. To do my legs and bikini line and upper lip it takes about one 1 hour. Hair is growing back a lot slower so far but it’s hard to be consistent.