This is in my Top 3 all time AirBnB stays. The place itself is great and has everything you need. Great lighting, good water pressure, clean, good AC, etc. The greatness comes from the hosts and the LOCATION!
The host: My wife and I like to fly in early and fly out late. Mark, obviously, has the place booked often but worked with us to get us checked in as early as feasible and held our bags while we explored the final day.
The location: Capitol Hill is absolutely gorgeous and there is so much to do all within walking distance. Great food, the Eastern Market, Lincoln Park, the Capitol, the National Mall, etc are all just a few steps away.