I smoked a pack of day of Menthol cigarettes for many many decades.
My intention was to quit when I got my E-Cig, but it didnt work out that way, between an illness, and getting used to the e-cig I ended up doing both, smoking and vaping, doing less of the former and more of the latter for a couple of weeks, then just over 2 weeks ago, I stopped smoking all together.
I did have a single cigarette, after not having one for a couple of weeks, and it was so bad, my e-cig so much better that there is no chance I will be going back.
I would much much rather have a vape, than a smoke.