I have stayed almost for a week at Martina's apartment with my family and we had an amazing time! The apartment itself is very well located (walking distance from bars, restaurants, markets, metro...), clean, cozy and everything is as great as it is described. We were informed well in advance how to access the apartment, had no trouble making ourselves comfortable. Martina was responsive all along the way and gave us lots of information on Berlin! Recommended! We’ll definitely look for this place next time!