There is a mildew/mold/humidity issue in the wall of the bedroom that was not mentioned in the description of the apartment or when I spoke to the host. The wall was excavated to allow it "to breathe" as per a sign in the place when I moved in. For me, who has respiratory health issues, this was unacceptable. Even worse, the host said the wall had been "drying" for 4 months (mildew/moldy walls don't dry; they need to be replaced) and then refused to refund my money, which I think is just plain wrong. I am a fellow host on AirBnB and would never attempt such a sham.