I don't smoke at all. It was something that I was never interested in doing, especially since I grew up with a heavy smoker (my father, who used to smoke tobacco pipes and cigars). Besides, I don't want any cigarette smell to get into my books, so I stay away from anything that could take away their cleanliness.
Though I will admit that some second-hand smoke smells really good. I don't know the brand at all, but it just smells better than other second-hand smoke. Since a lot of my coworkers are smokers, I just got used to the smell.