The building was under renovation work which Niklas was not aware of. Looked like a construction site from the outside. The inside was not impacted.
But the apartment was not completely clean, one of the beds was not made with new sheets and there was garbage left in the bin.
We decided not to stay and the only good thing I can say is that Niklas did his best to try and help us find an alternative.
I believe this is not representative of him and the apartment, but this was my specific case.