We absolutely loved our stay at Kalma's apartment. The apartment is spacious, tidy, and in the perfect location in Kreuzberg, close to so many cool cafes and restaurants and situated just along the canal. The only reason I feel I couldn't award 5 stars was because there are no curtains, which made it very hard to sleep past the early summer sunrise and the sofabed was quite small for two people. Overall, we had an amazing experience in Berlin and Kalma's apartment was perfect for us, just bring an eye mask!