Not a good design.  MESSY.  I like Cuisinart products but unless I am using this coffee grinder wrong, it is a very bad design and I don't know how/who approved this product to go to market.  The top goes over the more than just the grinding mill area so the grounds go all over when you take the top off and it is not automatic, you have to hold the button to grind the beans and it does not grind evenly or to a fine grind, its more a coarse grind.  wish I could take it back.