Very nice modern place and very well equipped with loads of space. Two ubahn stations in the neighborhood, one just steps away. Fairly close to Museum island and Gendarmenmarkt although still a bit of a hike.
Marcus was accessible and explained everything thoroughly so a very good check in.
The only drawback was being charged extra for more than one person in spite of the apartment being two bedrooms with three beds.
All in all a very good stay.