We had two of these installed in our bathrooms when the home was built. It is a vacation home, which we use for about 40 days per year. After a couple of years, one of the faucets leaked around the valve stem, which was inconvenient, but Pfister was very good to work with, as to providing the replacement cartridge and the tool to install it with. I did not need to call a plumber, the parts and tool were free of charge, and the faucets have been working problem free for a year or more, now.