I purchased this disposer to replace the same model that was only three years old. One of the blades came off because the rotating disk on which the blade was mounted was rusted out. I did not upgrade to a higher quality disposer because I didn't want to reroute the pluming. Want make that mistake again!!
This product was put into a new home we built. We have been very disappointed in it's design. Water does not go down easily through the rubber gasket in the sink. It often backs up even when there is no food in the disposal. We often have to push back the rubber slits to drain the water in the sink. Simply not a great design. We have owned many GE products over the years and have liked all of them. The garbage disposal however is not one I would recommend. Sorry!