Our stay was completely ruined by an incredibly overpowering stench of cigarette smoke constantly being pumped out through the air con. The smell was overwhelming even from the end of the garden path with the front door shut. Host was not at all helpful, initially denying any knowledge or that it was even possible. Within a few messages he admitted he was aware of the problem due to the upstairs neighbour smoking and sharing an air con system. Still no apology and was very blunt to the point of rudeness. I can not emphasise how strong the smell was. It clung to all of our luggage even after just one night, even the plastic carrier bags. Horrid. Be warned.