This KitchenAid Automatic Milk Frother Attachment is so simple to use. It locks into the side of the Kichenaid Espresso Machine and works in conjunction with it. In order to release it, just push the release button. It's fairly easy to clean. I use this attacment when I plan on making more than 1 cup of something and also if I'm making hot chocolate or powdered cappuccino's. The hardest part is trying to figure out your perfect setting. The tank can be stored in fridge for next use with leftover milk or creamer. It's the perfect addition to my Esspresso Machine!