Well, we went on a Wednesday, and focused on the animal exhibits as opposed to the rides. So for us, the Quick Queue wasn't even on the radar as an option. For a Sunday in July, it might be more beneficial if you plan on hitting all of the big coasters.
What we did do, however, was purchase the ticket that included the all day dining, which is the first option on the first link I posted above. For the same price of a regular gate ticket, you get to eat all day at the several participating restaurants. You can also go in the line and only get a drink, dessert, etc if you wanted... it's not that you have to get a full meal each time through line. For the 10 extra bucks, it was well worth it. We only ate one full meal, lunch, as the park closed at 6 p.m. that day. But our lunch would have cost upwards of $15 each alone... plus we had a mid morning snack at one place, and a late afternoon snack at another.
It was a slower day at the parks to be sure, so the lines at the restaurants weren't that long in the late morning and later afternoon hours. Even if the lines are longer, and you only used the deal for lunch, and purchased drinks and snacks out of pocket at stands for the rest of the day, you should still come out ahead.
