BB1, I think you can’t beat success as an advertisement, and if they’ll come through with many engagements, that’s the time to offer “special treatment packages”, and not before, when no success has been proven.
Otherwise, IMHO, it’s a way to risk/spend money for the rich and/or desperate, and their offer to look for Shidduchim for free, for others, where they admit to spending less time, becomes less interesting and attractive.