They hubby and I stopped in at the Carnival World Buffet in the Rio while visiting Las Vegas since our first choice place was closed for the Thanksgiving holiday. They did have a lot of variety of food to choose from, but we weren't really impressed with the food options itself. Nothing really stood out except for their gelato bar and wine bar, which was in my opinion this buffet's saving grace. If it weren't for that and the fact that our waiter (Andrew) was super attentive I would've given this place 2 stars. We won't be back, especially with all the other great places you can try in Vegas.