I've only been vaping for about a week, but as someone who has tried to quit smoking too many times, I can tell you this is comparable. Good and bad. I feel better, smell better, breathe better. Unfortunately, since it's still very early in my attempt to get off of analogs, I go through bouts of extreme restlessness to extreme sleepiness, and never at opportune times. Got a 30 page paper due for a history class and can't concentrate, and having some muscle cramps. All these are symptoms I've had with NRT and cold turkey attempts at quitting, so really, can it be any worse? I can say one thing for sure, I haven't had one single urge for an analog. That's something that did not happen when I used NRTs or tried to quit cold turkey.