Death by emphysema and/or lung cancer is about as bad as it gets, both for the patient and anybody who cares about him. Slow, nasty, good days and many more bad.
If you smoke, stop. If you do not smoke, don't start.
I quit after many years using the "patch" and also xzyban (sp). I was told not to use them together but could find no reason that made sense to me, especially given the alternative of continuing to smoke.
Frankly, it was really easy, especially after the first 7 days. At that point the physical need was gone, became a matter of "want." At that point, if you don't want to be a smoker, it's a heckuva lot easier.
VVV