Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective "stop drip" design

While the unit makes good coffee when it works right, the "drip stop" feature is defective. It often stops the coffee from flowing through to the carafe, resulting in the basket overflowing and grounds going everywhere. It's a pain to re-filter the coffee and clean the unit after this happens. The alternative is to watch the coffee maker like a hawk and, if coffee is not flowing, lift or jiggle the carafe to insure the coffee flows. In short, it's a pain.