For the price we found cheap accommodation for a few days, but we also expected clean accommodation. Everything seemed used and dirty like the last guest had checked out just 1 minute before. We discovered mold growth and the associated very polluting musty air didn't give us any quiet nights. Constant ventilation didn't help either. Unfortunately, the small radiator is of no use if the walls and ceiling have cooled down so much.
Our tip: either only rent out in the summer or upgrade the heating for the cold months, because the heating mode of the air conditioning switches off after a few seconds.