I bought this sausage stuffer because I love my KitchenAid grinder,use it all the time and works great but the stuffer is a big disappointment.  The plunger is not tight to push the meat down to the worm. The worm does not grab the meat do you are constantly trying to push the ground meat down with your fingers to get the air out ultimately getting a lot of air in your casing. I had watched a lot of the videos on using the stuffer and they looked so easy. It took an hour to do 1 pound of sausage because I had to keep stopping and manually work the air out of the casing. Not what I had expected.