They were very accommodating and knowledgeable. The treatment was quick. My daughter is 5, and has hair down to her behind. The whole process took about 1.5 hrs. It comes with a guarantee if you follow the steps. I haven’t had to deal with this before so I called my older sister who told me horror stories of nit picking sessions lasting 6 or more hours. Don’t do this to yourself, this was simple and they dispelled several of the myths surrounding lice as well. Extremely worth the money.