We really enjoyed our stay at Vivian's place. The property is in quiet, secluded area. You really forget you're in DC until you walk down the street. We loved that it was next to a trail in Rock Creek Park and did some hiking and walked to the Citi open tennis tournament(the reason we were there). Very close to the Metro, the Zoo, and some restaurants. All walkable.
The place was clean and quite spacious. We enjoyed our morning coffee on the deck in the peaceful setting.
Vivian was very accommodating and I would definitely recommend staying here.