I just got a vapor a few weeks ago to quit actual smoking after almost 30 years of smoking. At that e-cig store, I was asked how many actual cigs I'd smoke. So, I said 3-5 cigs a day... I lied (a pack a day or more if I am drinking actually). So, they recommended whatever the flavor I'd choose with 6mg of nicotine. They let me try it at the store, but when I inhaled it, I just started coughing and I knew I'd not be able to take it. So, I went for 0mg-fluid, and I've had no craving for the nicotine ever. Just simple vaporing (0mg) has been working for me ever since. I re-visited that store to get more fluids, and the store person said I'd be pretty odd. Well, I guess it differs from a person to person, so just an FYI.