This was my wife and I's first ever AirBNB trip, and it turned out great! Although we never met Richard face to face, from the day I made my reservation months before the trip, Richard responded timely and was happy to answer any questions.
The place is perfect for a person here for business or a couple for vacation. There's everything you need for a short stay (3 days to a week). The place isn't the Hilton, but it's homey and perfect for a place to come back to and feel comfortable after a day out.
Location, it's close to the metro, 5-7 minute walk. The metro station (Potomac Ave) is only a few stops from the National Mall (usually only $1.75-2.25 fare). There is a nice Whole Foods-style grocery store near the metro. I never felt unsafe walking with my wife at night or during the day from the metro to the apartment.
Great place and great host!