I got my first water softener from Haferman Water Conditioning, Inc./ Kinetico in 1982 and never needed service with it. The unit finally died this past year and needed to be replaced so I had them come install a new unit. They came back out recently to adjust the salt intake. This one is taking a lot more salt than the old unit did. I put in two bags of salt every three months in the old unit. In this new unit, I am putting in two bags of salt every month. I think that is a lot of salt but I don't know what has changed with the units between 1982 to today. At any rate, I am pleased with how efficient the technicians are. They were respectful of my home, they showed up on time and got to work quickly. They were courteous and professional. I will continue to use Haferman Water Conditioning, Inc./ Kinetico.