The place was comfortable and the facilities were all in good shape except maybe for a loose tap in the kitchen.
The washing machine which is also a dryer did not dry our clothes all the way, but it might be that we didn't use it correctly or overload it.
Except that the weather was very cold at the time in Berlin (0 degrees) and the heating (central heating system for the entire building) was a bit insufficient, so I asked Soren to bring more radiators and blanket and he did, which we very nice of him.
The location was good, close to train station, restaurants, and shops, and was easy to find and get into.
The communication from Soren was very clear and comprehensive. Overall it was a good experience.