The machine seems to help
The machine seems to help. It's still early days yet, but so far so good. The units are a little tricky to attach to your own back and for some reason one will work sometimes and sometimes they both work. It's hard to tell whats going on when the units are behind you. But overall, happy with the purchase. It seems to do the same thing physical therapy does at a fraction of the price. And unlike PT, I can so several times a day and in various places, which seems to help.