I switched to an electronic cigarette 3 months ago. I feel a lot better than I used to. After 3 days, I could smell again. After 2 weeks, I qiut coughing up copious amounts of brown colored crud. I started with a 24mg/ml liquid, and changed down to 12mg about a month ago. I haven't had a butt since about a week after I started the e-cig. Took about 3 drags off of it, said Yuck and threw it out. I had tried the patched, gum, lozenges and cold turkey. I didn't think this would work any better.
The only real side effect I've had is an expanding waist line.

Kirk