This is the perfect place if you want to stay in a quiet and nice neighborhood as well as being close to the White House and the National Mall. They are 30 minutes away on foot and 10 minutes by car.
The host was kind and attentive to our requests, and he provided us a lot of useful information for our arrival (for example where to park and how it worked).
The house was clean and tidy and the beds are very comfortable.
The only "defect" is that, when it's hot outside, you need to turn on the air conditioners in each room to stay cool and they are a little noisy, so they might bother a little while sleeping.
However, we really enjoyed our stay and we recommend this place if you are planning to visit Washington!