I smoked for 24 years .I started to use electronic cigarette 8 months ago . I am using a mod with rebuildable atomizers .I started with 24mg nicotine and after 3 months i lowered it to 18mg. I haven’t smoke at all from the time i picked up the e-cigarette. I have never used any product to quit smoking before i picked up the e-cigarette. When i use to smoke,i use to have sinus infection 6 times a year ,but when i started with the e-cigarette i haven’t had any sinus infection yet which is amazing .I feel more energized now and my lungs are clear and i don’t smell bad anymore. I think vaping is a life saver for me and i am really happy that i have discovered it .