You come to Tivoli Village for the locale but find that the food is actually a pleasant surprise :) Strictly for the food and atmosphere I would give it a solid 4/5. This is a great choice for a first date, meet a friend or even a casual business meeting.
Leone Cafe's corner street location with its outside seating will remind you of something out of a Paris postcard souvenir: Aesthetic, European, etc. Tivoli Village in itself is a nice escape from the cool but often glitzy, gaudy tone dominant in Las Vegas. Leone Cafe is a nice addition to the Tivoli Village atmosphere.
I really dig the interior with its marble table and countertops, illustrated menus and charming chandeliers. It's a step above your average mom and pop cafe. Complimentary waters are available on one side of the wall and big windows makes the room feel bigger than it actually is.
For foods we had the Guacamole Chicken Wrap, Champagne Chicken Salad and Spaghetti. The portions are bigger and tastier than I expected. I really didn't put much thought on the food but I gotta say it was pretty good. I feel like I cannot give a complete review because I have not tried the coffee or any of their popular desserts.