In general, we enjoyed our stay at Ju's & Ch's place, and we recommend the apartment.
The pros: the apartment is located in a charming and quiet street. It is well-designed, looks great and is well-equipped. The beds are very comfortable - both the bedroom bed as well as the living room's folding bed.
The cons: the apartment is located on street level, so it doesn't always feel comfortable to pull up the shades. The apartment has no full-body size mirrors, and the communication with the owner was somewhat problematic: he was always very quick to answer, but unable to solve the problems. That was true for very minor issues (missing toilet paper) but also for more important concerns, such the fact that the shower did not drain water efficiently enough, and so water spilled to the bathroom floor and even into the bedroom. The owner was unable to address the problem when we were at the apartment. After we left he claimed that the shower was clogged by hair. Given the length of our stay and length of our hair this sounds somewhat dubious. But that's not the point, as the problem was resolved after we already left.