Had a wonderful three night stay at Jan's place. The apartment is beautifully designed and super simple. Staying here alone I felt safe and had everything I needed to make myself at home, and the residential street the apartment is located on is nice and quiet in easy walking distance to the main street of Kreuzberg where you'll find lovely shops and restaurants.
Jan was a great host - super responsive, really clear check-in instructions and provided me with some recommendations too. Overall a seamless stay and I would love to come back!