Nadia's communication is excellent. She would respond to any email within less than an hour. The apartment is centrally located within walking distance to most of Berlin's attractions and is well serviced by all forms of public transport, shops and restaurants. The apartment is within 200 metres of the telecom tower which is a significant Berlin landmark. Some say alexanplatz is the centre of Berlin which is understandable. The apartment although close to the railway line is very quiet when the windows are closed, it is clean, has modern quality appliances/fixtures and is comfortable. I would highly recommend Nadia's apartment.