I am skeptical of a trainer who feels the need to create informercials just to get the word out there. It appears to me as if he is just out to make money- no different than the creators of ShamWow, MightyPutty, OxyClean... I could go on.
Most of the people who have posted on this thread have only posted once, and don't appear to be very educated when it comes to training methods.
A word of advice before you buy this "miracle product"- do your own research, read up on all types of dog training before you buy into something you saw on TV once. You may just learn something new!