Grinds the coffee ok, but I've not seen any taste difference in my coffee.  I guess I was expecting a better tasting cup of coffee using a Burr Grinder.  My Capresso grinder gives me the same results taste wise with less of a mess.  The instructions included need to be more detailed.  They also need to mention not to remove the bean holder off  the grinder with beans still in it.  Beans spilled everywhere, what a big mess.  I'm just not impressed with this Burr Grinder.