Hi Fence, Me and my wife use ACTIPATCH, Love it's results. We have an RN for a daughter who also teaches high impact aerobics and weightlifting and she loves the device. She recommends it to some of her students and a lot of her patients. We have gifted many of these to friends and ALL have thanked us and most have purchased them and gifted also. Lots of great feedback on the devices - just wish the advertising gods would show up.