My wife and I used it, she has been smoke free now for over 2 months. I had to quit using it though.

While it did a wonderful job of stopping the physical cravings for nicotine, it also had a side effect for me where waves of irrational rage would wash over me from time to time. Not good. Lol

The vivid dreaming and joint pain I could handle but had to draw the line at the anger. Knew it wasn't nicotine withdrawal because it happened before the cutoff to quit smoking and I don't drink so it wasn't that combo either.

Seems the majority of folks don't have the real bad side effects, but keep in mind some do so you aren't blindsided if you do take it.