The only bad thing I have to say is that I've never heard any establishment tell the truth about the pain. It hurts like HELL! Don't do this if you can't handle pain. Have them give you a couple free zaps to see if you can handle the pain BEFORE you agree to buy a package of treatments. I have had three treatments from Laser Gentle in Waltham. I also get laser hair removal at Dr. Russo's in Newton and All in One Laser in Newton. With Laser Gentle I am shocked by the results. It's also the least painful out of the three. I get good results with all three places but I'm amazed. I bought 6 treatments from Groupon and I've had three so far. There's barely any hair left. I do always see the same tech and I tip well. Pain tips= klonopin (seriously) taken at least 1 hour before treatment, 800mgs of ibuprofen taken 2 hours before treatment, and during treatment I tense all my muscles to get through it. It's a great work out and the techs all say that I tolerate pain better than most. I will say that this place LOOKS amateur but my results are great and my tech is great. I did a lot of reading reviews before I purchased my Groupon. They don't hustle me for money like some reviewers are saying. In fact I seem to be paying less. I bought the large area groupon and added a medium area in the "spa" but they are only charging me for a small area... trust me this medium area is a big medium LOL soooo I'm not experiencing the "upsell" hustle that other reviewers are talking about. I do tip well though. They're funny about tips because legally this is a medical treatment and aren't supposed to take tips so I practically have to force it on my tech.