Product review (5 stars): Great Garbage Disposal!
I replaced another KitchenAid garbage disposal that was 13 years old.  It turns out, I had an electrical problem and it did not need to replace the old garbage disposal.  But given its age, and the need to replace the faucet anyway, I decided to replace it.  the new one one grinds well and it's actually much more quiet. I am pleased with it!