My own personal experience was that all the times I tried to quit, because I thought I "ought to," "I should quit," etc, failed miserably. This time, after all these years (39!), I was just tired of the HASSLE OF SMOKING! The butts, the ashes, the stink, the going outdoors in freezing weather, the CONSTANT coughing and coughing up, the obscene cost, etc etc etc... so when I found something that closely approximated all the things I liked about smoking, and had none of the things I didn't, well that was an easy decision to make, and I WANTED TO MAKE IT. That's the real key, I think. If you try to quit because you "should," or you "ought to," or someone else thinks it would be a good thing to do, you'll never be able to do it. But if just once YOU decide that you REALLY WANT TO QUIT, it becomes very simple. No, the cravings don't just vanish; you have to work on banishing them, and e-cigs are a great help, but they're not the whole story -- you have to simply TAKE THE OPTION OFF THE TABLE. Or in terms of what I've heard in AA... "don't _____ even if your ... falls off." Drink, smoke, whatever it is you want to stop doing. If you remove the option from your own mind, that's about 99% of the battle.
But as long as there is even a shred of "well I'll only do it if I really NEED it" in your mind, your brain will MANUFACTURE a need, guaranteed.
So, vaping can be a bit of a hassle. So was smoking, and I think people forget that, and it's also obscenely expensive. Vaping isn't, or it doesn't have to be, if you can rein in your Shinyitis impulses to a minimum. Vaping is a terrifically effective key to unlock Smokers' Prison, but you still have to open the door and walk out, yourself -- no one can do it for you.
Andria