WARNING!!
Excessive cigarette smell and limited ventilation!!
We knew in advance that smoking is allowed inside and there is no problem with that, the problem came when we tried to ventilate the room and David told us we couldn't leave the windows open for too long because the thermometer regulating the heaters is located in that room and the cold winter air would then mess up the heating system.
I can tell you that he is not a casual smoker but a heavy smoker, the cigarette smell was strong from the beginning, but it was unbearable at night since the bedsheets had absorbed the strong scent making a continuous sleep impossible. On top of that the bed was saggy.
All our clothes, including the business suit I needed the next day, caught the cigarette smell so deeply that I was embarrassed and uncomfortable to wear it at the business meeting.
I am very sorry to review this nice place with 1* because everything else was fine: David is polite, replies messages quickly, he is chill and easy going and in general a great host; the place is well located and what you see on the pictures is exactly what you get.
Nonetheless, the main reason why I use Airbnb is to rest well and be ready for the next day, not being able to properly rest (and breathe for that matter) outweighs negatively anything else.