The location of the apartment is exactly where we wanted, full of bars and restaurants and close to the place where we had to work. The communication with Mark at the confirmation was great. Before arrival we received a message from another person demanding an exact and accurate time of arrival at the apartment 7 days before. We introduced the time we thought we would arrive. Then he called us when we were at the airport and told him an approximate time of arrival without knowing exactly how long it would take from Schönefeld. At our arrival, this man had been waiting 20 minutes and didn't welcome us in the best way, complaining about our delay without understanding it was hard to specify an exact arrival time. Apart from that, the apartment was very spacious, stylish and clean. The mattresses were too hard for our taste and there weren't any blinds or dark curtains blocking the light (we knew about this), so we couldn't rest as much as we would have liked. All in all, our stay was pleasant and, despite the welcome, we wouldn't mind to go back again.