The Dial-a-Brew knob on the Remington iCoffee Opus is awesome. I love being able to quickly and easily change the brew size. I also appreciate the extra 2oz it can brew over my Keurig. Using the 12oz setting with a really robust coffee provided a nice travel mug that wasn't too watery. Having 0.5oz increments allows you to fine tune your beverage to your liking much better than Keurig's 2oz jumps.