It's situated in the very heart of the Potsdam old town and it's very easy to get anywhere you need. Furthermore, the room was very nice and comfortable, with small kitchen and all kitchenware included, shower, wooden furniture and very soft bed, as well as TV and wireless Internet. I got more than I needed :) Overall, I was very satisfied with my stay in the pension.
Polite staff, large room, close to the city center, changed reservation dates easily. No reception, calling the owner required but it is not a big problem.