I spent 6 weeks in Siebe's gorgeous apartment. The place is very comfortable and you can tell that a lot of thought was put in its design. It's a great place for Netflix and chill, taking a long bath, or cooking something nice.
Siebe was a very nice host. He was very thoughtful to leave the fridge full of goodies for me, and provided very useful tips about the city.
The neighbourhood is more quiet than other areas of Berlin (Kreuzberg or Mitte), but it has its own attractions, and it's very easy to get to the city's more energetic areas.
Overall it was a great experience and I can definitely recommend Siebe's apartment.