Beyond its exceptionally compact footprint, the Keurig K-Mini is also super simple and straightforward to use. The tank holds just enough water to brew one cup of coffee to tea, so it's easy to just fill it with your mug, plop in a pod, and hit the button. There are no extra settings or filters to deal with, which is perfect if you just need caffeine, and don't want anything standing between you and that first sip.