This warmer is awesome for my Massage Practice. Unfortunately the stones that are included are not great, but I already had my own set anyways. And I am unable to use the LCD Display controller when it is plugged in to my car. Other than that it has been super awesome! I love being able to use hot stones to loosen up clients muscles when needed. It heats up quickly and stays hot for a decent amount of time. I have only had it for a couple of weeks but so far so good! ??We now have 2 friends who bought these after using ours. They feel fantastic. The heat settings can go functionally as hot as you want, or a nice medium cool. I find 130 degrees works well, but there is quite a range above and below that. But there is just something fundamentally relaxing about having big stones pour heat out on your back. It's just as ridiculously nice as you might imagine.A few things to know... You'll want to pre-heat for a WHILE. They take 1/2 hour to 1 hour to get up to heat. And you might want to order a few other stones from Amazon... the ones that ship with the bag are really nice, but each stone only retains heat for a few minutes outside of the bag. You can easily go through all of the stones in 20 minutes or so. Now that is a lovely 20 minutes of heat, mind you. But if you want longer sessions, pick up more stones. Also, I did accidentally crack the car cigarette lighter attachment, but that was an easy fix.Fundamentally, though, this was a perfect purchase. On cold nights, just getting or giving a hot stone massage is really lovely. It doesn't take too much skill, as warm rocks are really pleasing even if you don't know what you're doing. And this is a great set, with good electronics, in a good package. Highly recommended.I do like how hot the stones can get but wish the heater was on both top and bottom of the bag. I wish the outlet cord was a bit longer so I could mover farther from the outlet with it. It is for a 3 prong outlet. Quality is very good.Good quality ! Makes taking hot stones on the road a piece of cake ... Such a great piece of equipment for mobile massages - worth every penny !Just got it and have used it apx 6 times and it works great - quick heating and easy to work with !How long it lasts will be curious to see ...I love my travel hotstones & bamboo kit warmer. It works great with the stones and my bamboo kit. The stones come with the warmer. I bought the bamboo sticks kit separately to save me money. The hotstones and warmer kit is in great condition it looks brand new. I can't wait to use it on my clients for my massage business. It is safe and heats my stones and sticks to 160°. Its the perfect size and its lightweight. I can not tell you how much I love it! Thank you Amazon! And the seller and merchant. Oh the delivery shipping was on time too.Quick delivery. I am a massage therapist and have tried it once so far. Took about 15-20 minutes to heat stones up to 120 degrees. After using and the stones became warm, I tossed them back in to heat up as I used another set of hot ones. It worked well alternating stones in and out to keep hot.Awesome portable product for my massage business, heats up fairly quick, easy to clean and maintain. Has room for additional stones I added.This is a great, convenient and portable system. It does take awhile to warm up and tends to get extremely hot, be careful. Hoping after more experience with this set that I can control the temp better. The plastic zipper bag makes cleaning much easier.