This apartment is very spacious and cosy. Beds are really excelent and the small street noice is barely heard in. Notice, the apartment is on the third floor, so actually you have to climb 4 floors up and the stairs are quite steep.
Neighbourhood is lively with many nice restaurants and bars. Metro station is in few minutes walk.
Martina was very wellcoming and gave good information about the area. Se also answered without delay to e-mails. Defenetly recommend her apartment and Kreuzberg when visiting Berlin.