This is what I call camping in the center of Berlin.
The good thing: The place is clean, spacious.
The bad things: you have to be ready to take your shower with one hand, spent 30 min drying the bathroom after every shower you take, because there is no shower curtain, neither a hook to hold the shower head.
The good thing: secure, close to cafés and restaurants but still very quiet.
The bad things: The day light will wake you up at 5:00am because the shades are not black out.
As the photos shows, you probably will be sitting on the floor most of the time if you want to chill :-) , a mattress on 4 shipping palettes is your bed but it is comfortable. Over all the building is quiet and central, the flat is good and the kitchen is functional if you are ok with the camping style.