I don't know anyone who's ever had success with it--it's one of those things that of COURSE would appeal to an alcoholic--geeze, I don't have to give up drinking!--but as with most things, I suspect that if it sounds too good to be true, it probably is. I suspect if it actually DID have that level of success, it would be universally recognized.
How about if you let your boyfriend's treatment professionals worry about what's most effective?