Johanna's place is spacious and well-located, close to an S-Bahn station and several good bus routes.
I didn't meet Johanna in person, were just in contact via the website, but she was very friendly and helpful in her messages. There was a bit of a problem with check-in but she has since updated her check-in info, so hopefully there won't be any issues for future guests.
Clean bedding and towels were provided, which was great, but sadly the apartment wasn't very clean overall, with quite a lot of dust and hair.