If you are looking for a central appartement with style, design and attitude, this is the right choise. The appartement is perfectly situated only a few steps from the U-Bahn close to Naschmarkt. You find the appartement inside a block why it is served mostly by indirect daylight. Though there are no doors in the appartements (only to the toiletts) you can not expect any privacy between the two floors.
Christian is a very nice host and answerd quickly when we had some questions about the heating system.