Two of us stayed for two nights. On the first evening I messaged the host asking for some milk (for coffee/tea), some extra coffee pods (only two had been provided), and for an extra/warmer heater (we had a heater running but it was quite small and wasn't warming the apartment).
A man came to the door shortly after with milk and pods. He didn't introduce himself and seemed annoyed that we'd asked for things. He said that noone had ever complained about the heating before, but that he'd manage to sort something for the next night (didn't help us be warm that night though). When he left I felt bad about asking for things, but we were paying to stay there. It's pretty reasonable to expect milk and a warm space. It felt like our presence there was a hassle for this guy.
Next afternoon the host messaged me to say she hoped we were having a good stay and did we need more heating? Replied yes, and when we got back that night there was another heater in the room, which was great.
Reading the reviews for this place it sounds like the host is super friendly if you meet her. We didn't, but after meeting the unfriendly man we felt pretty unwelcome, so minimised the time we spent there. We left early the last morning and it felt great to be out of there!
Would not recommend staying here.