Total BS.
Let's start with the basics... "reported horsepower gains of up to 20+ HP." Reported by who? Tested how? Some guy that they paid probably said, "Wow! Feels like at least 20 horsepower to me!" and so now they're talking about "reported" gains. BS!
Then they say the stoichiometric fuel mix is a "balance between power and fuel economy." No, it's not. The stoichiometric ratio (14.7:1) is where you achieve the maximum possible amount of power for the fuel burned. They say that you'll get a small reduction in fuel mileage, but a large increase in horsepower, by giving the engine a richer mixture. WRONG! What you'll get is a LARGE reduction in fuel mileage and a SMALL increase in horsepower! Not only that, but running overly rich causes all sorts of other havoc in the engine. More BS!!
They say that their module changes the fuel curve, and then say that this "improves" the shift speed. Well, I don't know how the computers work in every engine out there, but in a Jeep the shifting of the automatic transmission has nothing at all to do with how rich or lean the fuel mixture is. Yet MORE BS!!!
On their FAQ page they say "your gas mileage will be the same." And then they say "the change will be virtually unnoticable!" Leaving aside the fact that they don't know how to spell, which is it!?! Will it stay the same? Or won't it? Let me tell you, if their miracle horsepower comes from running an over-rich mixture, you very definitely WILL notice the reduction in gas mileage! And yet further BS!!!
An hour on a dyno doesn't cost that much. If this POS was actually worth anything they would have spent the small amount of time and money to PROVE it! If it sounds too good to be true... You know the rest.