if you dont know what your talking about, dont say anything.
pre workout drinks are not there to make you get bigger, they are there to make your workout better. Preworkout drinks just make your more focused and boost your metabolism and adrenaline levels (the technicalities on thsi are beyond me, but its prety easy to google and read up on if you know anything about human anatomy) more efficiently than anything else will. Saying that a preworkout drink doesnt work is like saying adderall doesnt make you more focused.
And just had my first workout with jack3d for those who are interested. Pumps are comparable to no xplod and white flood, but it made me quite a bit more focused. I got my workout done about 20 minutes faster.