The apartment was great. We had everything we needed: the beds were really comfortable, the kitchen/living-room didn't lack anything, everything was very clean, everything was really quiet, and we asked the host to put up the air-conditioner (the apartment was freezing cold when we arrived) and he did so immediately. Therefore regarding the apartment it was 10 out of 10.
The only thing that we didn't like much was the way Nikola, the host, spoke to us when we met. We had been travelling for hours, were really exhausted and we would have needed a warmer welcome.