This was an awesome investment. I have many friends that state their doctors prescribed them one of these, and now I see why. It takes a moment to get used to how to operate it, because the directions are slightly vague, but I now can always get a massage. The back strap on the relax setting halfway up makes me feel pretty good. It’s like always having a light massage. Just enough to relax. I would say to build up the intensity when you start. Otherwise it doesn’t feel that good. It’s funny to do to someone though.