Product review (3 stars): Not sure how to rate this but...
Don't want to punish the price/vendor so I'm rating it at 3 stars.  It is a heck of a deal for the replacement.  But of course the part is the biggest abomination known to human kind.

Here's a heads up...those little plastic "ears" that break off from the wheels will find their way to the "chopper assembly" and will ruin it.  If your dishes aren't cleaning chances are those stray plastic parts blew through because they are small enough to fit through the grate.  As for the chopper assembly, at least it is under twenty bucks but rides on a cheap plastic hub.