Bought the product from Gnc for 2 months. Nothing happened. No changes in any category that they brag will improve. A very expensive lesson: "don't believe the hype". All of these products promise a magical cure for whatever ails a middle age man but none of them seem to deliver the goods.
There's only one other reviewer here at the time I wrote this and, if you look at their reviews, they ALWAYS give a 5-star glowing review which suggests they're probably a guerrilla marketeer. (Seriously, click on that guy's profile and look at all their other reviews... I didn't go through all 16+ pages but you would think every single product he's ever reviewed is a life-changing miracle.)
I did not pay for this... I got a couple 14-day trials (4 weeks worth total) and they did nothing for me. Not surprising... there's no easy way to replenish testosterone and if there was, it probably would not be available without a prescription.