My wife and I stayed in Torsten´s apartment for 1 week. The apartment is exactly as described on AIRBNB. The whole place is quite large (living room/kitchen, bedroom, and bathroom) and certainly appropriate for a couple. The apartment is well equipped with all you need for a long stay; some things could be improved (such as softer pillows and bed linen, a broom, extra garbage bags). The apartment was generally quite clean, although we saw some spider webs under some furniture and high on walls.
The location is very nice, close to a beautiful park and wonderful lakes. There is a bus stop 200 meters from the apartment, just a few stops for the S Bahn and the boat trips. You can take a bus and the tram and will be in Potsdam in about 30 min.
The location is very quiet and one can sure have good dreams there. Unfortunately there was a lot of noise from the upper floor of people walking and using blender early in the morning.
We certainly recommend Torsten´s apartment.