Everything worked fine with Daniel and he was very helpful. Communication through the Airbnb-site was the best way to get a prompt reply during the visit.
The apartment was on a residential street in a peaceful location near river Spree. The walk by the riverside was very nice and there were a lot of people jogging on the riverside and in the nearby Tiergarten park.
A S-bahn line runs nearby with a few minute train frequency and the Bellevue station is within a two minute walk, so public transportation was excellent. The backside is that because of the rail line one cannot expect to sleep with windows open.
There is a small food shop nearby and a supermarket 500 meters away.
The apartment was as described and everything worked, though the WIFi was unstable and cut out frequently, but was still useful to find out opening hours etc.