We had a very pleasant stay in Berlin ! :) Bert and Mi Kyung's apartment is located in a quiet area, just 20 minutes away from Checkpoint Charlie. Two metro lines (U6 and U7) are close, which is very convenient. Bert was friendly and very accommodating with us, he recommended places to visit and good restaurants to discover. As for the room: it is spacious, comfy, very clean and nicely decorated.