Well, where do I begin. First of all, I do not understand the point of buying a supplement that has store ingredients, but again, I am willing to try anything. I bought the so called (35% more fat burning) supplement you refer to, which contains caffeine and EGCG and tested it. Well, the results were EXACTLY like the once I got from using normal coffee and drinking GREEN TEA. I got no more effect from this "supplement" then I did from just a plain coffe/green tea combo, besides the fact that my wallet got $29 leaner.
Just remember, a lot of wieght loss supplements are hyped, and a lot of them can just be taken with simple store bought ingredients = saving a lot of money(in this case coffee and green tea...which can be purchased at any chinese store and at safeway).