We've used the app a couple of times, worked like a charm. Last time was the best, though. We walked up to the Flame Tree Barbecue and the line was huge…back into the walkway in the park. We pulled out our cell phones, placed and order, waited a couple of minutes, and picked it up at the window to the right of the other serving windows. We watched who was at the end of the line when we started just as an experiment, and they were halfway through the line when we walked away with our trays of food. Nice. And a small benefit, but waiting was more comfortable, able to move around, etc.