I personal think that it's bullshit, but there is a few stories of people who was smoking for 10 years and with electric cigarette stop smoked. I'm a smoker and i would like to stop that's why i need your advice.
I have tried them and didnt like them. I have since given up smoking but the e-cigarette wanst for me, I would too worry that in years to come people will come to know that they too have health problems from these.