I have not had a food processor since I got rid of my 1st generation Cuisinart years ago because I could never get the pieces to go together easily or come apart easily.  But this attachment is a dream.  It's so powerful and it goes together and comes apart as easily as the Vitamix blender tops and containers.  It would be nice to have a few additional disc options.  Pulverizing mushrooms and crackers for a meatloaf recipe happened in seconds.  Grating cheese not so much however.  I won't be trying that again.