There is definitely no shortage of Italian restaurants in Vegas and I can't exactly compare my experience at Canaletto to other places due to this being only my second trip to Sin City. What I can say however, is that they provide a solid experience both in service and in the actual meal. We went ahead and reserved a seat on Open Table, but in retrospect it does not seem necessary. While busy, there did not appear to be a wait (6 PM.).
I guess I'm easily impressed because my waiter could pronounce everything on the menu. This may not seem like some great feat, but my Indian father and I were butchering the menu like nobody's business. I was equally as impressed by the prompt service and courteousness of every member of the staff.
Now on to the food. My father got what was essentially a fish stew and he was very pleased. It was definitely a seafood smorgasbord. From prawns to shrimp to clams, there was definitely nothing left to want. I had already partaken in a monster meal at Carnegie deli earlier that day, so I was not interested in one of the heavier meals. I chose the vermicelli al pomodoro and it was exactly the light meal I was looking for. The pasta was tossed in a light tomato and olive oil sauce that was very tasty while not being overbearing.
As I mentioned earlier and other reviewers have said, there is a plethora of Italian food in Las Vegas; specifically in the Shops at the Venetian. With my limited knowledge, I wholeheartedly recommend Canaletto.