Instruct: Classify a given Amazon review as either positive or negative.
Query: Duofilters review

When I use free trade naturally decaffinated freshly ground coffee beans and the Duofilter in my Krups coffeemaker, I get the smoothest most delicious cup of coffee available anywhere on the planet! It beats out any coffee served today at a gourmet coffee shop. I also found the best price for Duofilters here on Amazon.