I myself am a heavy smoker and have been smoking for 30 years. I have tried quitting a number of times with no success.
Since trying the electronic cigarette I have almost completely Quit Smoking in a few days, It has been my personal experience that within 24-48 hours after you start using electronic cigarettes and stop smoking traditional cigarettes you will start to feel better, you will have more energy, be more alert. I can not say that everyone will feel the same as I did, but think about it !
Once you stop continually taking in all the carcinogens and chemicals produced by traditional cigarettes and start taking in more oxygen it only makes sense .
I also noticed within 6 hours of using electronic cigarettes, I decided to have a traditional cigarette real Smoke
First off the real smoke tasted dull and flavourless, it made my mouth feel dirty and pasty. I instantly felt tired and heavy, my head felt dizzy. The longer I went between having a real smoke these feelings increased every time would try to have a real smoke, and my desire to smoke a traditional cigarette decreased.