Product review (4 stars): they do a good job
I have a samsung front loader that seems to have a problem with the balancing of the wash load before it spins up.  We got these pads to try to drop some of the vibration, which it does do, unfortunately it does not help with the washers load balance problem.  These also work well for telescopes to cut down on vibration from people walking near-by, especially if it is on a deck.