We stayed in 219A, the location is perfect for a stay in DC, while not walking distance to the Convention Centre it's only a $7.00 Uber drive and it's walking distance to a small convenience store to the right (with ATM) plus not far from that is a Giant Supermarket in the old O St Market. There are several great restaurants nearby including Beau Thai and La Jambe, both reasonably priced. The apartment itself was immaculately clean and while we had a short tussle with the lockbox on arrival (it is very stiff) this was resolved with some tips from the housekeeper. An iron was missing when we arrived but Richard kindly resolved the next day. We thoroughly enjoyed our stay. My only comment would be that if you find 14 to 15 stairs a bit of a struggle with a heavy suitcase, stay in 219B. The street is lovely, the houses being "gentrified" and the areas appeared safe to us day and night.