I have been using this HB Flexbrew Trio for a couple weeks and i can say it makes great coffee, quickly. It is very straightforward on how to use each side of the machine. I prefer carafe in the morning and single serve in the afternoon. I do not use k-cup's but it is nice to know when i have friends of family over that they can choose to bring their own coffee. I like the capacity of the single serve water reservoir, i fill it every few days. The single serve side has room to fill a normal size travel mug. The parts of this machine are easy to clean and the water reservoirs are big enough to get a cleaning sponge into.