It will be 15 years in Dec for me. My clinic was offering a study for people wanting to quit and I went thru the program, was on a pill for 4 weeks and then we had to decide when we would quit. I was then put on either a placebo or the real thing for a few months and that was it. Never looked back and glad that I quit, it's getting hard for smokers to smoke anywhere. My state is smoke free in all public buildings and my city has no smoking bans on some of the city streets.