The place looks amazing — way better than in the pictures.
It has its own authentic style — lovely combination of rough walls, lots of books and clean white furniture. I was there alone and it felt pleasantly spacious and two persons would fit perfectly. The view is incredible and you feel like you can see the whole Berlin.
Another great thing is that it is right next to a subway station and a shopping mall. The place is very quiet, you just hear a little bit of traffic outside.
Also, Julia was great, always responded quickly and kept the place squeaky clean.
I highly recommend this place!