This is a great location, convenient to Union Station if you're coming in by commuter rail from BWI, like my friend and I did. The space was good; a small basement apartment with private entry that opens into a room with a bed, which can be closed off from the remainder of the space, which has a futon and some breakfast-friendly amenities like a coffee pot, electric kettle, refrigerator, and a toaster.
It's about a five minute walk to anything you'd need, including Harris Teeter, the NOMA-Gallaudet Metro station, and a Capital Bikeshare stand, all of which served us well on this trip.
Check-in and out was easy with a code to a lock box outside of the alley entrance to the house. Be aware that a/c is provided by a small standalone unit in the main room, which is fine for futon guests, but may not be for guests in the room with the bed.
For the price and location, it's pretty good.