Product review (2 stars): Didn't work well for me.
This item is a great idea and it worked well for a while but began throwing the circuit breaker on the disposer.  I could bypass this thing and plug the disposer directly into the wall and it never flipped off, but every time I reattached this unit, it would throw the reset button on the bottom of the disposer after 2-3 times.  I was able to return it for full credit (got in just under the 30 day limit!)