My boyfriend and I stayed at Natasha's studio for three months in winter and enjoyed it a lot. Natasha was a great host and very welcoming and supportive. The neighbourhood (Cleveland Park) is amazing, lots of nice restaurants and all the stores you need are close by. It's only a short walk to Rock Creek Park, the National Cathedral and the National Zoo and the surrounding area is beautiful. Metro is right in front of the house and it's only a couple of minutes till the city center. Uber, Lyft and Via Rideshare are always somewhere in the area if you plan on heading to areas without metro (don't rely on the bus system in DC, it exists but it's terrible), e.g. Georgetown (10-12 min ride).
The apartment is small but was enough for the two of us. It has two walk-in closets and the kitchen is well equipped. There is a well-functioning heating which we never used since there was always enough heat coming from the entrance hall and the surrounding apartments. It's located on the raised ground floor (privacy ensured), windows to the street. If you are noise-sensitive, earplugs might be useful but we never had any problems. The apartment might need some renovation here and there but nothing grave. Would stay there again anytime and had a great time.