The day before our arrival we were informed that the apartment had some problems and therefore they would not be able to accomodate us. They found a solution by sending us to a (not too nice) Pension. However, the reservation for this Pension had only been made for one of the two nights, so that on the second day we again found ourselves without an accomodation. At the end they were able to finally book another hotel in the city centre for our second night.
Needless to say the experience was not the best. The host could have found a single solution for the two nights instead of making us change accomodation and making everything even more complicated than it already was. In spite of everything they were however quick enough to respond to our requests and find a solution without leaving us without an accomodation.
About the flat I can not say anything because we were not there.