Was a smoker for 27 years. Most recently a pack and a half a day. Tried quitting cold turkey twice with no luck. Recently tried a personal vaporizer and without giving much effort, cut my 30+ cigarettes a day habit down to zero in 10 days and have been tobacco free since. I’ve consulted my doctor and he felt this was no more dangerous than using a patch or nicotine gum and congratulated me for quitting my habit.