I've had my Nanobond cookware for 4 years. They still look beautiful and they perform masterfully. I appreciate how quickly they heat up and how easily cooked-on food is released. The interior of the pots do discolor with each use, but the Hestan polish removes the discoloration in seconds. And - importantly - keeping the pots looking new by using the polish is FAR FAR easier to accomplish than with other high-end cookware. I highly recommend this 10-piece set, as well as the stunning wok, which I use for braises, soups, etc. Super versatile.