We spent a week at the SANA Berlin Residence in a 2 bedroom, 2 bathroom apartment. I can only say good things about the experience. The building is located in a great area, convenient to public transportation, with many restaurants and shops nearby. The apartment itself was well equipped, very quiet and comfortable. We had an initial concern about the air conditioning not cooling sufficiently during an August heat wave, but Sebastian immediately had a crew fix the problem. A highly recommended stay!