Is that the Weight Loss Shake that Heavin talks about in his book or is that just any ol' vanilla whey protein you picked up off the shelf?

Just wondering if any of you gals opted for the Curves Complete multivitamin or the Curves Integrated for joint support, or the Curves Essential calcium suppliment? Are Curves brand products expensive? Did you ever get the impression that a person is bound for failure if you don't use their brand of products? Hmmm....things could get rather costly, eh?
Are you able to figure out (or did anyone tell you other than what Heavin says in his book) if these products really are better formulated than other brands? I haven't asked too many questions about the diet program or the supplements at my gym yet for fear of the 'attack-the-unsuspecting-victim' salesperson approach. I was hoping to find answers to these kind of questions via the LC forum.