After I've smoked for 30 years, I get my machine and BOOM. As soon as I put it together and filled it, that was it. I had planned on needing a smoke before I fully switched over but, never had that last cigarette. In fact, it's STILL sitting right in front of me from last Saturday when I started vaping. As a history of my smoking, about 10 years ago I went to rolling my own with tubes, a roller and tobacco I bought in bulk. The week before i'd bought a carton of tubes and a BIG bag of tobacco. As soon as I got the machine up and going and that last smoke made that was it. So much that I called my ex-wife and told her to come get all the stuff i'd gotten the week before. I was done with the smoking thing. I can't say enough positive about the vape thing... I can already smell and taste things like I haven't been able to in 30 years now...!!! As it is at the time i'm writing this, it's been 6 days and not even a desire for a real cigarette, not even with one sitting right in front of me... that's the true test of how well it's working. I would (and have) recommend this to everyone that even has a light desire to stop smoking... IT WORKS...!!! Danoman... P.S. I got the Kanger Pro Tank 2 and the Ovale Evic vape machine... Now, i'm on to make my own e-juice.