Stay at Henrike´s apartment was wonderful, Henrike is very nice and really good host. The apartment is located about 10 minutes walk from subway station MoNa and from there only 1 station to the turist center.
The apartment was very spacious and clean. The bed was as confortable as our bed at home. Internet connection is not so fast, but that's not Henrikes fault, they have only one provider in location. So if you need really fast connection, you have to visit Starbucks or some other cafe.
Neighborhood of the apartment is quiet and we felt really safe.
At least Henrike baked delicious cookies for our next trip. If we went to Washington DC again, we would definitely stay at Henrike's again.