Product review (1 stars): And even worse than this
We bought this because we wanted a quieter disposer than our previous one.  We thought KitchenAid would make a quality product.  It is definitely quieter but it does not grind up food well (e.g. the brown papery skin that is found on onions or the center of bell peppers).  And even worse than this, our sink started stinking a few months after switching to this disposer.  I guess it's the rotting food in the base.  I've tried running whole containers of ice through it as well as baking soda. Unfortunately, a garbage disposer isn't easy to return because you'd have to pay for a service call for the plumber to uninstall it and then to install a new one.  Do not buy this inferior garbage disposer.