i am on wellbutrin, however i take it for IBS, so if you have digestive issues then you have a double whammie! lol but really because i've taken it for IBS for so long it doesn't really have a mental effect on me for smoking, so i don't consider it my quitting agent. i never had a bad taste or anything like that, but the one thing i can tell you is that since i am pretty much on it long term, you are not supposed to drink on it, however my dr said if you have 2 or 3 responsibly you will b e ok. Just make sure you monitor yourself if you drink otherwise it may adversely affect you. other than that i have heard god things about it for quitting, and who knows, it might actually have an impact on me but i just don't realize it since i've been taking it for IBS for so long! good luck!