The apartment is recently renovated and very spacious. It was very clean. Note that this is part of an “apart-hotel” so it doesn’t have much Berlin charm if that’s what you’re looking for.
Most importantly - if you will need wifi at the apartment, we recommend to contact the host first and have them send you a wifi speed test from the unit. The first unit we stayed in had no wifi signal; we had to move apartments and the second one still had very weak signal. Also, there is very poor cell signal in the building.