Seems to me there are more bad smells than good, I would give up the improved sense of smell, Improved sense of taste is good, but can lead to weight gain,

however I don't miss the coughing fits, wheezing, rails, gasping for air while exerting the least bit, did I mention coughing? All in all I would rather have 2 broken legs and a headcold than go back to smoking.
