Great location!!!!! So many conveniences within walking distance. Union Station is a quick 10-15 minute walk away. Whole Foods is a block down the street. There are several restaurants at your fingertips.
Know that parking is quite limited. The Hosts were very upfront about this. So, if you are planning to bring a vehicle, may not be the best location. That being said, Lyft, Uber, and the like were always at the doorstep within 5 minutes after request.
This particular unit is on the ground level, so there will be people potentially above you, so there may be somewhat of a noise level from above with which to contend. However, we did not find this to be a big problem.
Finally, David, the host, was great. Very receptive and quick to respond. He provides a lot of information about the area including restaurants, sight seeing, other amenities such as bike rentals, etc. Although I have been to D.C. multiple times, I had not stayed in the Union Station area, so all of the information about the area was quite helpful. I felt completely informed prior to my arrival!