We absolutely had to have this KitchenAid Milk Frother Attachment. It has a large capacity for when our very large family is over. They all want the specialty coffee. The unit works perfectly with our KitchenAid Espresso machine. You can use the provided reservoir which can be removed and kept in the refrigerator until needed or simply put the hose in a cup. This attachment is capable of making a lot of frothed milk. Can go directly in your cup or the front reservoir will hold as much as you care to make. Milk is made super creamy. Clean up is simple and frother can be broken down to its individual parts for cleaning. It’s a great item we are happy to have!