having not taken it (not taken any anabolics up to this point - just turned 31, been training for ten years, and have just now reached a genetic limitation) I cant provide any anecdotal evidence.
One of the guys I was Vegas parting with is a trauma / er doctor (who also parties like rock star). He has been doing some research into the subject.
Anavars primary use in real medical establishments is for treatment of AIDS related wasting. The best information he came across is from an alternate treatment facility in Houston for AIDS patients. Apparently the theory is sound as virtually every sudy indicated the errection side, as well as increase's in libido.
I am not sure that it is worth taking when going to a club, or what kind of dosage is needed.
Both the guys selling it were obvioulsy into body building. they said they first heard about it at an LA club.
Take it for whats it worth, I am just passing it along, I dont claim any knowledge beyond what I have read here on Anavar.