7/11: Cafe Vettro. Great service, friendly hostesses and waiters (even one that didn't wait on my table). Quick refills.
The Aria Burger was alright, nothing special. Used some poker comps. Not worth the full $18 (though I have yet to find a burger that would be). The Raspberry Iced Tea wasn't that great either ($4.50). Turkey Burger was ok. Fries were standard. Other customers didn't seem that thrilled to be there either. The only reason to eat here would be for the convenience if you're staying at the Aria, or if you got a fully comped meal.
Aria probably assigned management to make mediocre food, as they would be competing against their own (fine dining) restaurants. Probably some kind of marketing strategy to get you to spend more in other places. Pretty standard business structure.
Nice decor. Very spacious and quiet. I would come back if I had enough comps for a free meal :)