I agree, I've never quite been able to figure out anything useful over alternatives. Like the usual "send me an SMS when the weather will be rainy" example - I use a highly customizable weather app that gives me more power to send me stuff like that without having to fiddle with a new system.

This system's integration with Mechanical Turk could be interesting, but I'm too dumb right now to figure out some cool things I could do with it.