This has been very supportive for my chronic pain and recovery. It's helpful when I add yoga to it. Just love it. The reason I gave 4 is because sometimes the cord doesn't work
I recently purchased this vibration plate to accomodate the poor circulation in my legs due to lymphodema. After one week of using it 3X / day My legs do not feel as heavy and painful as they did prior to the use of the plate. I am very satisfied with the initial results and am looking forward to increased success as time goes on.