In this task, you're given a review from Amazon's food products. Your task is to generate a short summary of the given review in the input. Note that you don't need to write a complete sentence as a summary.
Q: These little cups are a waste of money. The Kerug machine had a difficult time processing the coffee through the cup, and as a result I ended up with several half cups of coffee. I tried it about 10 times, and then gave up.
A:
They do not work