Product review (5 stars): Definitely reduces noise and shaking
We bought this for out front load washing machine.  It has definitely reduced the noise, vibration and shaking.  Before Silent Feet, our washer used to shake so much that the whole machine would end up moving about 2 inches and then up against the wall (we have a small laundry room).  With Silent Feet, the machine stays put as the bottoms are non-slip.  Of course our machine still shakes - I still can't figure out how to balance a load - but this definitely minimizes the noise and vibration.