Marc and his flatmate Kelsang were very friendly and made us feel right at home. Flat is an easy walk from the train station, and to Alexanderplatz. Provided croissants for us to eat for breakfast which was very nice of them. They also gave us a great recommendation to join a free walking tour of Berlin which was a great way to get a feel for the city. We also really enjoyed their dinner recommendation. A lovely stay all round. Thanks!