The apartment is partially renovated and is located in an old building (with no elevator), surrounded by an old district. So this kind of environment was not particularly pleasant for me. But that's the matter of personal taste.
I experienced three challenges during my stay.
There is no central heating or AC in the apartment so it was cold during my whole stay (in January). An electric heater was not able to provide enough heat for the whole apartment plus there was a lack of power sockets and extenders for the provided heaters. So I was able to use one heater out of four. And I bought one extender to be able to use it.
The apartment is dark. There is not enough light thus not possible to work. So I had no choice but to work in a co-working nearby.
And finally, as the building is old, the apartment's electrical network is weak so when a few devices were ON, the electricity went OFF. There was a case when I spent a night without electricity waiting for assistance.