I got the Keurig Brewer Cleanse Kit a few weeks ago, and it works really well!! First it is compatible with all Keurig's which is great, and it is so easy to use. It removes mineral buildup, and reduces flavor carryover between brews. After running the cleanse kit, just run a water brew through, and then you are done. I prefer to do this weekly to keep my Keurig clean. I would highly recommend this awesome cleaning kit to everyone who own a Keurig!!