I stayed in this apartment in April 2019 in connection with a conference at the Washington Marriott Wardman Park hotel. The apartment is approximately a 6-7 minute walk from the hotel, and there were zero issues for me at all. There are lots of restaurants around the apartment, and the metro station is also very close. The nearby park is really great for running! It did not take long to get to the popular sightseeing spots via metro.
The hosts were very friendly, helpful and responded quickly. Checking-in myself was no problem, and everything was clean and in order.
You'll have to decide for yourself whether the price and location is worth it.