Product review (3 stars): Worked fine for 5 years then failed abruptly.
I had excellent service from this product during the past 5 years of use.  Recently, it failed as both grinding blades and support bolts began to appear in the sink.  The motor, however, continues to function.  It would appear that the blade retainer mechanism failed due to mechanical (shear) stress.  There was no evidence of internal corrosion.  I've ordered an exact replacement to facilitate quick and easy installation.