Product review (5 stars): BEST EVER
It is the best garbage disposal EVER.  Totally worth the money.  Super quiet.  The only con is the drainage lip (black thing around the drain) has to be used.  If you use anything else, it gives the sink the an earthquake effect.  *can't be good for the parts! So the draining is super slow when you have a sink full of water.  But I'm okay with it!