The entire staff, from the salesman I spoke with, to the technical support I received when I called in on some questions I had about the unit was extremely helpful and very friendly. I have called other water ionizer companies just to compare prices and the level of knowledge and support I received were horrible at best! When I called Tyent, there was no pressure and they were available to answer every question I had and the unit itself is one of a kind! Simply put, I could not be happier with my machine and I use it every day and I am so thankful I made the purchase, it really has changed my way of life! Thank you TyentA very loyal customer!Michael Greer