We had an awsome stay in Henrike's house. The house is very clean and nicely decorated. Henrike and her family are very nice, friendly and welcoming. The house is about 13 minutes to the metro station and less than 2 miles from the national mall.
You can easily find a lot in the street to park your car for free, which is not typical to many neighborhoods in DC.
All in a word, this is the place you need to have a pleasant stay in DC.