From my own experience: I tried Chantix twice; the first time I was going through divorce so I was already depressed. The Chantix enhanced my depression ten fold! I tried Chantix again recently and suffered terrible mood swings. I am a very mellow, easy going guy and these pills made me snap at the drop of a hat. My GF and son both noticed radical changes. I had given up all hope until I discovered the e-cig. I'm now vaping with the Silver Bullet mod and I don't even really want to smoke. Once every so often, I think I want an analog and have one, but it's always less than fulfilling. I prefer the vapor. Also in NY, ten-dollars-a-pack is quite a deterrent! For the first 2 weeks I was burning up atomizers with this mod, at 3.7 volts! I had to learn to take long, slow draws and let the atty cool down between puffs. I tried all of the cessation products, but nothing worked for me like the vaporizers. I feel so much better and although have spent a fair amount to get started with vaping, it's been nothing like what I've spent on tobacco. Be careful with the Chantix; the list of potential side effects is disturbing!