Product review (4 stars): Reduces noise and vibration, but not as much as I had hoped
I bought these after reading reviews about how they instantly made vibrations from the washing machine disappear - and my upstairs washer was shaking the entire house. They were really easy to install, and did reduce vibration and noise as promised. But there's still vibration going on; last night I could feel my bed down the hall shaking slightly due to the washer spinning out water. That's better than it was though, so overall I'm pleased!