I had been smoking for 9 years. For the last 3 months I have been Cigarette free. I started out using a disposable e-cig and then moved to a mechanical mod. I was using 18 mg strength nicotine now I’m down to 3mg. I’m a war vet I used to smoke any where from 2-3 packs in about 2-3 days, now I just use my mod have cut back on nicotine. I can run better, don’t smell horrible, don’t wake up coughing, no head aches if I don’t use my mod. I was a heavy smoker, now I’m to the point I cant be around anyone that smokes now because of the smell and I noticed that my allergies haven’t acted up unless I’m around someone smoking. I’m a lot happier now that I’m not stuck on cigarettes. I can play with my child and not get tired. all in all I went from heavy smoking to ultra low nic juice.