The K15 is great! I received mine through the Influenster website for product review, and I genuinely love it! It is so simple to use, 3 simple steps and you have your hot drink in 2 minutes or less. Great for making a quick cup on the go. I usually make a cup of hot chocolate then add a bit more water to cool it down when I'm in a hurry and it doesn't noticeably change the taste. I can't wait to try different k cups.