I highly recommend staying at Daniel and Lauren's place, particularly if you are traveling for work. I was in town for 6 days and really benefited from the amenities including having a kitchenette and hosts that regularly refill the coffee supply! The location also makes for an easy commute to the center of DC using the Metro or Uber. The apartment itself has all of the basics needed for a good stay - comfortable bed, work space with reliable internet, shower with good water pressure, and the entertainment options (huge & diverse DVD library, Netflix) are a nice bonus.
As hosts, Daniel and Lauren are incredibly helpful. They respond to messages quickly and are ready with tips for navigating the area as suggestions for places to go. My first day in town they not only allowed me to drop luggage off 6 hours before check-in but also provided a hand-drawn map to help me navigate walking paths to Navy Yard that Google Maps doesn't pick up. Plus, their food recommendations were all solid. I would absolutely stay at this location again.