My stay at Petra's home was very good. A very nice place to stay in, very confortable, with lots of love and attention to detail everywhere. Perfect for disconnecting from the city for a few days. There's a cute forest only a block away, which was gorgeous to visit in this time of the year. You can even go to the lake walking!
It was also pretty accessible from the city. With just an U-Bahn and a taxi I got there from the city center in 45 minutes.
My only observation is that the rented house is behind the owner's main house. They both share the same front yard entrance, with some distance between the two houses but no private garden for the back house. It was a little different from what I understood from the pictures and the translated description. With that said, it wasn't really an issue, I didn't see the owner or their family at all.