Vegas is a foodie town, and Aria has a lot of wonderful restaurants. If you ask me, Julian Serrano is the best restaurant in Aria and it's one of my favorite places to eat in Las Vegas.
I LOVE THIS RESTAURANT.
Service is top-notch and fast. For a party of 14, I was worried about the wait time for food. No need to worry, they know what they're doing! Food started coming out almost immediately. Tapas are a terrific option for large groups. The pace of dishes coming out was perfect. Also our waiter was able to split up the bill (we ordered in groups of 3 to 5 people).
Finally, the food. It's excellent!! Everything is amazing but I particularly recommend the calamari, which is among the best I've ever eaten. Other notable dishes include the salmon, the risotto, croquetas, peppers, papas bravas.
You simply cannot go wrong eating here.