We've had this for three years and the finish looks the same as when we installed it. It is plastic but looks like metal. We have it in chrome and it matches our Delta Allora faucet perfectly. It;s easy to install and fill from the top. It does squeak occasionally but that is remedied by removing it and rinsing the mechanism. Update April 2016: It is sticking when depressed. We've cleaned it but it hasn't helped. Think that maybe a spring is gone. We'll probably be replacing it.