My wife and I watched a video of the inventor speaking of and explaining this technology a couple of times. My wife then did a good bit of additional research. My wife tried this first, then we went together. We then took 2 family members and did an overnight. I found each experience very enlightening, fulfilling and productive. My left knee and right shoulder which have been an issue for many years, have progressively felt better with each visit. I am glad I went and I will continue to go and experience the benefits of this wondrous technology. I would highly recommend giving this technology a try. Plus, the customer service was absolutely fabulous.