We spent 5 nights at Herbert's and Irina's place. They are friendly and open, flexible. After talking to Herbert we could use the kitchen to cook simple dishes, or having tea or coffee. The location is near a S-Bahn Station by bus or 15 minutes by foot. Easy to go to the center of Berlin or to Potsdam in 40-45 minutes. The place were clean and calm. The bathroom is modern and functional.