Product review (4 stars): WORKS PRETTY WELL!!
Okay, we all know the cost of these little gems are insane!  $40 for 4 rubber pads - can you imagine the profit margin!!  That said, they do work.  I have a Bosch front loader wedged in a row of IKEA cabinets next to the sink on the 4th floor.  I was scared to death the machine would walk across the room or shake my backsplash off the wall or worse pull the hoses out when it walked - well, Silent Feet do work - I mean, the machine still vibrates and shakes, but very little.  Would I buy them again?  Yes.