We stayed at this unit in June 2016. Very convenient/walking distance to Potsdammer Platz and there are several train stops only 1-2 minute walk. The efficiency apartment seemed like "new" condition, easily slept 3 on 3 separate beds, and was equipped with everything as listed. Martin could not have been friendlier or more accommodating, easy to communicate with, accessible, and graciously offered dining and other local recommendations. Thanks for everything Martin!