Product review (4 stars): Excellent Product
Extremely easy to install and its amazing at how its able to quiet your disposal.  You can barely tell its on.

I took away one star because the downside to the quietness is the fact that food is much more difficult to get down the disposal and takes some messing with the food and a utensil or hand.  The one positive from this I guess is that since we've installed it we haven't had any measuring spoons fall down and get eaten or our silverware get chipped up.