Product review (4 stars): Works
Not perfect, but has stopped our washer from "walking" across the room or into a wall.  Washer still vibrates, but not as badly.  Probably the recommendation of another concerning putting 60 lbs. of kitty litter on top of the washer would reduce the vibration.  From now on when I need another washer, I will purchase a top loader.  I would definitely purchase this product again.