Not sure of value but they are good with me
Been a few times here, which is convenient. Not sure what good it will do as my back muscles need a lot of strengthening and that's a very long job. But I am in so much pain as it is difficult to keep them up. They are very thorough and good with me, but feel it would be better if i could use some kind of pulsing system. The positions for the stretches and exercises are difficult to get into.