I used my Hamilton Beach Burr Grinder for the first time this morning.  I couldn't believe how quick & easy it is to use.  It was a little confusing until I rad how to line up the arrow to lock the hopper & lid in place.  It is a safety feature that if they aren't alligned in place, it won't turn on.  I love that I can select how many cups I want ground & it turns off when it reaches that point, you can select anywhere from 2 to 14 cups.  It also has 3 different grinding settings depending on which type of coffee maker you are using.  It definitely will make grinding our morning coffee a breeze!!