I think it's a fairly new offering. As for the price, that's about 2 hours worth of work for an attorney. I would consider it peace of mind considering he's one of the best 2A and firearms focused lawyers in the country, let alone the state. I'd rather be able to rely on the advice and work of Guy Relford than save a few bucks with a trust I bought through a gun shop kiosk.
Don't get me wrong, I don't think a kiosk is the way to go. However, Marc Halata is almost half the price and Grant Liston (another nfa trust lawyer) is less than $400. Is he worth the extra money? Maybe, maybe not.