When you purchase a product from Sims Vibration Labs you not only get top of the line quality you get the assurance that you are buying from a company that stands behind it's product. I have never had a problem with a Sims product so I have never had to deal with their customer service. I can say this the people at Sims that I have dealt with have all been fantastic. They answered my questions and returned my emails in a very quick and professional manner. The people at Sims have not forgotten the customer.