For myself, I stopped smoking on 15 July 2013 and joined in the vape crowd. My lungs feel better, breathing better, no more wheezing in my sleep. I started out with the eGO and a MT3 tank, soon after that, I bought a VV/VW mod, which ended up failing on me, so I bought a sentinel. I get strange looks every once in a while when I am out and about with my sentinel and people ask me "what is that". So I tell them, then they try to tell me the dangers of the e-cig, and that is when I laugh at them and tell them keep believing what big tobacco tells you since they are never wrong, lol. It has helped me quit smoking, and MANY others as well. I say if you're going to smoke, smoke safe.