This faucet was installed many years ago to cap a very extensive and expensive kitchen remodel. It has outshone and outlasted many other parts of the remodel. Just like most of us, the faucet requires some maintenance over time. It has moving parts you know, and they can wear down. What is unique is the lifetime guarantee that has kept it running. Between the customer representative and me in conversation we have kept it running good and looking good. Now I'm no plumber, but they have continued to make it so simple to identify and replace any parts needed to restore the newness that I love. And where else does this happen, seemingly forever with all the parts you need and all you pay is shipping. Bless those reps and techs. I'm sold on this baby and Pfister Pforever. I own no other product that has given me this much confidence and good feeling about fixing it myself