I purchased the Certified Refurbished offering. It arrived well packaged and in good working order.

 It’s compact size makes it great for it’s intended use, as we travel from our sold home in California to our new home in Idaho. We’ll be stopping along the way, and will want what we consider to be “good” coffee.

To accommodate tall travel mugs the lower silver lined bottom tray has to be removed, an easy task. The water reservoir holds, and is marked for for a single cup of coffee. Our metal Contigo Travel Mugs are (about) 16 & ¾ Inches tall with out their lids. The water reservoir water fills our Contigo cups about 2/3’s full. Great if you take your coffee the cream and sweetener. The thing now to be aware of is .... your patience. 

Here is how I proceeded: 
• Plug unit into a power outlet.• Place coffee cup below.• Pour water into reservoir, up to the bottom of the red upper border.• Open lid in front and insert your favorite brand of coffee pod. The act of opening the front lid powers up the unit.• Close lid. This presses the coffee pod into place.• If you prefer STRONG coffee, press that button first, then press the big round silver button/disc on top of the unit.• An indicator light, on top, will flash, indicating the unit is working.• THIS IS THE POINT WHERE YOU MUST BE PATIENT. While operational, the unit is not the FASTEST device ever created. However, given a few minutes the water drains from the reservoir into the unit, is heated, then runs through the coffee pod and into the cup.When not making coffee, there is a storage compartment that holds 9 Coffee Pods. When you’re done, dry the Keurig parts off, pack it up (re-assemble, if you will) & away you go! So far it is a fine purchase, I recommend it!..