Kilian's place is just as described in the announcement, really nice and comfortable!
He was not there to welcome us but sent us all the necessary information to get there and into the apartment with no trouble.
The bed is comfortable and the apartment had everything we needed. It was clean and tidy.
There are some brochures in the bedroom where we found out some interesting things to do in Berlin.
It is close to the center of the city (30 minutes walk) and 5 minutes walk from the metro lines U and S stations, or tram stop.
If we ever return to Berlin, we would definitely consider staying at Kilian's!