The unit works perfectly. Strong, tough. By cons, I can go on the internet to find out what quantity to (not more than two thirds). Then you really leave the unit a full night in the refrigerator to get a nice whipped. It fa ut prepare the night before. Do not rely on revenue delivered with a genius for whipped. (There are three, written in very small). In addition, you have a web address for more recipes, but I still looking ...