A few of my friends went the Chantix route. It worked for one, but was hell on the others.
I recall back when Zyban was fairly new, I asked my pharmacist what his thoughts were about it - he told me not to even consider it because a colleague had begun taking them and started having seizures. Apparently, as soon as he stopped taking them, he was fine. He further went on to say that this was not the only case of adverse or dangerous side effects he knew of.
When Champix became available, I didn't even consider it.
In the past, whenever I've seriously thought about trying to cut down, I've ended up smoking more. Tried gum and found myself smoking whilst chewing it!
I stopped flying because of the ban, stopped going to restaurants or anywhere else that I was either not allowed to smoke or my slipping out for a cigarette would be met with glares of disapproval by some (they seem to be everywhere!).
Oddly enough, we went out for lunch last week, and although I had an eSmart with me, I didn't use it at all ..and it didn't bother me! Once home, we had two guests for coffee, and because I prefer not to use it where it's an object of curiosity, I waited until after they'd left before settling happily with my EVOD!
So, not only have e-cigs stopped an up to 35 a day 50 year habit, they've seemingly stopped my 'no smoking' stresses.