Yeah I bought some for our pro shop on the request of one of my trainers who is a fitness competitor, but I've been hesitant to put it on the shelves untill I get some feedback. You know 40-50 yer olds want the easy way and 4 hours of cardio is not an option they consider. I'd be happy if they'd cut out some fat and carbs, and add some protein to their diet in addition to just a couple hours of cardio, but hey what the hell do I know?