I have been using Airbnb for more than 8 years and all over the world and I have never experience this issue. The smoke and the smell of cigarettes was overwhelming all over the apartment. I had to sleep with the window open in 33 degree weather because the smell was so bad. The next day I wake up with a big headed and cough. Gregoire seems like a nice guy and I don't have anything against smokers but this place is unfit for hosting.