The single server option does not seem to work property. The ground coffee ends up in your cup, because the single server filter and option do not work properly. Whatever amount you put on the filter and whatever ground coffee you use, you'll end up with coffee grounds in your cup of coffee. A badly brewed cup of coffee with grounds in it.   What's the point of having the single serve option if it works improperly.It kills the concept of the entire machine. The 1 star is well deserved. This is a dysfunctional product out on the market. Totally unhappy. Waste of everything, including so many resources; waste of my money because I am the one who has to pay for shipping it back.  Terrible design.