Central heating wasn't working and I have reasons to believe that the host was well aware despite acting surprised: there were a few electric heaters in one of the wardrobes, which means this probably wasn't news to them. The handyman was supposed to pop by on the second day and we were asked to leave a set of keys in the lockbox, which we did, but they never showed up despite me chasing for an update. No apologies have been received after the no-shows. Lack of honesty, overall.
The door of the cupboard for the cleaning products, located in one of the rooms, was completely unattached. This was very heavy solid wooden door which fell on me when I tried to open it... No harm done, but I would have appreciated a warning.
The place was very clean and very new, but it looked unfinished and some fittings didn't look great or weren't attached. The front door to the apartment has a key, but it is not a standard double lock safe system.
You can also hear the guests in the apartment above.