I smoked for 29 years. 2.4+ packs a day the final 3 years. When I first tried a real personal vaporizer I liked the idea but not the flavor. When I got a flavor I liked I went to 0 cigs just like that. I experienced a setback at two weeks when I ran out of e-liquid and smoked for one weekend. Stocked up on liquid and I am now over 80 days with no cigs. Nothing else has ever worked for me. The physical motions of smoking are more addictive for me than you can imagine. Personal Vaporizers fill need this very well.