The apartment is good maintained overall but the room we stayed in was not well insulated. The heating system in the room did not work (One heater was working but it was almost of no use due to the bad insulation). The other door in the room is directly connected to outside and cold air was coming from all 2 windows and a big door. We couldn’t sleep well enough because air we breathe was too cold. Even floor was like an ice. My partner and I did not feel like we were sleeping inside of house. It more felt like a bunker. If anyone is planning to stay in this room (especially) alone, I do not recommend to stay in this room in such a cold weather.