You know, I think it would be beneficial if everyone pooled thier resources and experience for a sticky that listed the approximate quality on IP's products. There are so many questions like this.
I was very skeptical at first. First week didn't really feel much. I was taking 1/4 every six hours. About 2 weeks in, strength and pumps went crazy. 1/4 every six hours seems to be the key for me. Good product.