We visited Washington DC for the Spring Break in 2018, 2 adults and two kids.
We had a great staying. The house is stylish, quiet and cozy, located in a nice and safe area (there are few homeless people around the corner living in tents, but did not cause any problem).
It's 10 minute walk from Union Station, 20 minute walk from US Capitol, 40 minutes from Smithsonian National Museum of Natural History, 60 minute walk from Lincoln Memorial.
Good value for the money. Totally recommended!