Product review (3 stars): I still get vibration
My washer is on the second floor. It no longer walks but the vibration is still present. I was hoping for more. I think I would still buy this product again. Just don't expect it to be a cure all.

The impact of the feet seems to change over the course of a few days. The washer seems to settle into the feet and things get better. Still not a cure all.

One interesting side effect of the feet was the transmission of the vibrations through the water supply lines. This caused a pipe rattle which I had to fix.