wax as u dry

Anyone try this product? Is it worth the money? (for those who don't know, it claims you just spray on when the car is wet, then wipe off)

they were giving these out at the pepsi 400 and well i probobly did it wrong..., but i dont think you can do it like in the comercial where you just hose it and spray it on and let it dry, i sprayed it on and rubed it on and it worked ok, but the wax goes away in a week or so and it shines not even half as much as liquid glass or black magic..., if you ask me i think its a waist of time..., but i could have done it wrong???