This is marketed as a staking system that can be used on UK, US or any racing you can find, so not sure what the monthly subscription pays for.
Their site shows screenshots from their William Hill account over a 3 day period during April 2014. From the screenshots you can see the staking plan increases stakes after losing bets in order to recover lost stakes and make a profit. In our experience this sort of staking plan can work for a while, but the inevitable long losing will wipe out your betting bank.
They offer a 7 day free trial via PayPal, so if you want to find out more about it you can do so risk free (the subscription can be cancelled directly with PayPal).