Most of the previous reviewers will be astounded that I chose to give Cafe Vettro 4 stars, but allow me to explain.
Compared to the rest of the service received during my stay at ARIA, our waitress was amazing -- friendly, fast, helpful, thoughtful and spot on. Her name was Penny. Ask to sit in her section when you go there.
The breakfasts were very good and tasty. For what we paid for a less than stellar morning meal at The Wynn, this was an excellent deal. We're in Vegas, after all.
I've been lamenting about design being chosen over function at ARIA, and unfortunately this applies to the cafe, as well. First you walk though a Disneyland-like entry with green glass structures, and then based on where you are to be seated you walk through a Disneyland-like maze. Tables nearest the windows -- although they provide the best view of the massive kayak/canoe piece of art ("The Big Edge" by Nancy Rubins) -- are the farthest walk, and there is no simple, easy throughway. So much for safety; think about how difficult this is for the servers...and the kitchen is a million miles away! All the more reason why I want to reward the staff at Cafe Vettro and let management know that the staff here have to work harder than anywhere else to satisfy their customers.
Otherwise, it is a nice, bright and open space as far as design goes.
Note #1: when sitting by the windows, you will have the annoying blast of floor ventilation hit your table.
Note #2: we only ate breakfast here, but we did so three days in a row thanks to Penny. Thanks from the "faux-hawk" crew in San Jose!