I smoked for 26 years. Over that time frame I tried to quit many times. Cold turkey, patch, gum, Chantix, and even got hyptonized. It has been one year since I smoked a cigarette and this is all due to the ecig. I started off a disposable and now use a mod. I started with 24mg strength nicotine and am now down to 3. These are great product and they continue to get better each and every year. I feel that they will save lives in the long run and are the best way to kick the habit.