Angelika (or Carsten) always responded our messages in a few hours or less. The apartment was in a mostly quiet area and the way to the metrostation was just about 10minutes to walk. The connection to mannhaten was perfectly good. The apartment was clean and as pictured and things like hairdryer and towels were provided. The only thing which was "negativ" was that you could hear the kids from above but thats not as annoying as it sounds becaus you are out all day and when you want to sleep they were sleeping too. All in all we had a very great stay and would recommend it!!