I don't actually smoke but i know someone who does. She's been smoking like half of her life but eventually she stopped for some reason. She attempted to stop like three times. The first two failed but the third one was, i'd say, successful. Since the third attempt, she hasn't smoked nor did a single Puff and she doesn't look for it anymore. Although it's too early to tell since it has only been 3 yrs but i think she's doing great.