We purchased our first phister kitchen faucet about 10 years ago. 5 years ago we had issues with the ceramic valves failing. I called the customer service and they replaced them at no cost to me. Just recently the valves starting leaking again along with the base of the spout. Another call to customer service resulted in replacing the valves with newly designed models, and a new spout, bushing, and O rings for a complete rebuild. All this (again) at no cost to me. Kudos to the customer service department and how Phister stands behind the products they sell. Their will only be Phister faucets in my future purchases.