My story: I bought one to use in the car as my wife does not smoke and hates it. The first day i found i had only smoked 3 cigs, i was a pack+ a day smoker of over 25 years. after day 3 i went to have my 1st cig outside, this was at night had not smoked all day, and took 3 puffs. It tasted like crap and i was like "why am i doing this". As i said i had no intention to stop smoking. Actually i would get angry at my wife for even suggesting it saying "you knew i smoked when you married me". You could have my smokes when i die!! was my mentality. Not sure why it was so easy for me. Was it that i started out with a mod? was it that i had a decent juice right off the bat? or was i really ready to quit and just didn't know it? At this point i think this thing can work for anyone that has even the slightest idea of quitting. It worked for me and i was no where near ready to quit.