If you are living a mindful lifestyle and/or enjoy your local coffee shop coffee beans, seasonal blends, etc. that you are unable to get in a K-cup, this is your answer!!!! It works with all classic and plus series Keurig brewers, and works perfectly in my K-Compact brewer :-) I really love that Keurig makes this product. I'm really enjoying it. *I received this product complimentary from Influenster, but all opinions are honest and my own.*