I have been using the G-17 Pro Hypervibe since it was first introduced and its first need for repair was courteously handled by Daryll of the customer service dept. As a polio victim who had corrective foot surgery, I have found the G 17 a godsend to relieve stiffness and circulation problems. If you are a golfer (I'm a fanatic) the massage setting in the Relieve and Revive program is a fantastic way to get a pre-round warm-up and post-round loosening as well. I cannot say enough for the way my Hypervibe has helped me physically. It's nice to find a company that produces such a fine product and that obviously takes pride in treating its customers with courtesy and effectiveness.