My son knows one person who has used the rebuilder, and swears by it. I know you can even by your own, and there are websites for it. I also saw it being sold by a chiropractor on eBay. New ones cost about 1200.00 or so, if I remember correctly. I almost bought the one on Ebay, but it just kind of bugged me why the chiropractor was selling it. He told me he just did not have much use for it in his practice, but I wondered if he was selling it because it did not help people much. I never bought one, and as I have said, I just heard about one person who has gotten relief from it. I have listened to Dr. Prax on youtube. How was his book? I almost bought it. I think he made a point though, that if a certain percentage of nerves are damaged, the neuropathy is irreversible. I think I thought mine was irreversible. He is a bright guy who does all kinds of health videos. Anyway, best of luck...Lori Renee