Its one of those things where people have tried it and said it works well, and others have been skeptical but there are some experience reports on Erowid.
http://www.erowid.org/experiences/ex...=-1&C1=-1&Str=

I havn't bought any for a long time, for ecstasy mainly but I do think it potentiated the high if not by only making it more relaxed. Heres a tip; don't buy it at GNC because those bastards over charge.