I've stayed in this apartment for a month. Overall the place is great, looks just like the photos and in a perfect location. As mentioned, the bed is a sofa bed, but it was good enough for me. The place was clean and included everything promised. The location is quite central with an Ubahn station close by, but the entrance is private and the place is quiet. Great place for a short trip in Berlin.
There were a few things that could however be improved: first, there were a few occasions in which I was asked to be in the apartment or to allow them to enter without me in a short notice. In addition, some supplies were missing, and I had to buy myself some toilet paper and pods for the washing machine. Lastly, there are electricity issues so that some of the lights go on and off by themselves. I've told Anis about these while in the apartment, but it wasn't checked or fixed.
Aside from those the place was good and I enjoyed my time there.