While everything was ideal including cleanliness of unit, the overwhelming smell of cigarette smoke was undeniable. Reported to host who immediately came to inspect the property and denied smelling anything and informed us it was a non smoking unit. However everyone in our party agreed that there was a musty cigarette odor. We had to leave window open all night despite the cold. We slept poorly as the smell was pervasive & after checking out we could still smell it on our clothes and in our hair. We are not overly sensitive to odors but in this instance it was too much to ignore. We were offered a token credit but sorry, not enough to warrant a good review.