Alex's apartment is spacious and comfortable, we loved our time there. It is located in a fabulous neighbourhood, right next to the East Side gallery (preserved Berlin Wall), with lots of great cafes, bars and the Markthall nearby and a U-bahn station a couple of minutes walk away. Communication was great, with Alex very responsive to any queries. He was also very generous in allowing us to check in early in the morning after a long-haul flight and refused to take any payment for this. We would unreservedly recommend this apartment and this host.