Product review (5 stars): I only bought this because InSinkErator's product testing team is run by idiots.
Like others here, I bought this baffle because the sound barrier baffle that comes with the InSinkErator Evolution series garbage disposals is so incredibly useless that it cannot even properly drain cheerios. Upon replacing it with this baffle, the volume of my garbage disposal significantly increased.

I don't care. If you can't pour anything into a garbage disposal because of the stupid baffle, what good is the garbage disposal.
If you have an InSinkErator Evolution, do yourself a favor and buy this replacement baffle.

Seriously... What moron at InSinkErator decided to make the hole on their Evolution series baffles the size of a pea?