The apartment is great, and very centrally located (the apartment building is right next to both a bus and a tram stop, on a direct line to the underground).
The apartment was clean, spacious and with everything one would need for a comfortable stay. A supermarket and a pharmacy is also located at the entrance of the apartment building.
Elke (the host) sent me detailed information via e-mail, and responded within 24 hours to queries that I had before arrival.
Overall a great stay!