Product review (5 stars): Awesome
Have a second floor laundry with a front load Neptune.  My wife has been running on medium spin for the last five years because of the vibration.

When we did forget to put it on medium, it scared my children, my dog would hide, and my father asked if we were having an earthquake.

I bought these things on a whim, and they actually work!  We've been running on high speed since we got them, and while we can still feel a little vibration, it is so much better.  No more glasses rattling or crying children!

Very satisfied.