The catch is they expect you to fully exhaust your AD GI Bill on the flight training, and then they pay the remainder. From what I can tell, if you have already used your GI Bill they will still pay a portion, but the most they offer is $23,000 and it is through a program at Coast Flight in San Diego that costs $48,000.
It definitely sounds like a good program, but for those of us who have already used GI Bill money, or like myself are reservists with little to no GI Bill money, it has less of an advantage.
I'm not sure how long you are obligated to stay after training, 2 years maybe?