They call it he "happy, horny, skinny" pill. I take it with lamictal. I have never been on it alone. Other ADs alone caused manias, but I do not know if Wellbutrin would do this as well.
I would say that it made my libido normal, but hyper-sexuality is a mania symptom for me, it does not do that to me, I do not think. It is sometimes difficult for me to identify symptoms while I am experiencing them.
It definitely suppresses my appetite, hopefully it will help you quit smoking.