I use the product with the k cups and with the my k cup which you can fill with your own coffee or even tea. This has been so great while I have been sick to just quickly have a warm cup. It is also really convenient in the morning when you are rushing to work. Just pop in a k cup and push the button and you're rolling out the door. The only downside I have seen is that after using the my k cups there seems to be a couple of drips afterwards. But, that could just be me not being patient. Overall, love love love and perfect if you love caffeine but aren't a morning person.