Product review (3 stars): Best bang for the buck
It's a great product and I'm sure it will last forever and bang per buck its for sure a winner, however it's not nearly as quiet as the
"InSinkErator Evolution Excel 1.0 HP Household Garbage Disposer"
 That is the quietest disposal ever but a lot more cost.  The main factor is in the starting of the disposal motor, waste king clicks on with a knock and then purrs on fine very quietly.  The more costly disposal must have a way to ramp up the motor speed and not create the startup knock noise. Now on the negitive of the
"InSinkErator Evolution Excel 1.0 HP Household Garbage Disposer" is the rubber gasket at the sink level that allows food and water down is not good it needs an update as it restricts the flow of water to drain down and causes the sink to act like its backing up, I had to cut sleeves on the rubber gasket to allow water to flow better. That fixed the problem mostly but it required me to revisit the job and fix (not happy)