Grant is super nice and super hospitable, and he went out of his way to make our stay comfortable. He was very responsive and replied very quickly over text. The apartment itself was beautiful. There is everything you need here, and even a full kitchen with pots and pans if you want to cook. It's very close to the National Harbor area, which is great if you're coming to this area for conferences. There's a CVS and Giant (grocery store) right down the street, which is very convenient.
The downside is that the neighborhood is a little sketchy and "rough". Overall our stay itself was great and I would stay here again, but I'd recommend using Uber or Lyft to get around rather than public transportation, especially if you're by yourself.