I've only been here once and it was delicious!
I was staying in Vegas and got tired of eating at the casinos so my friend and I drove around looking for a place to eat when we saw a sign for Maggiano's. He had been to one in LA before so we gave this one a try. We were seated right away and, being the klutz that I normally am, I spilled my water all over the table. Our waiter was super nice and friendly and joked around about it (aka he teased me). He brought us bread right away and when I spilled water on that, he brought us another basket without us having to ask!
I ordered the garlic shrimp linguine and my friend ordered the braised beef canneloni. We both loved our meals but I think I filled up on bread so I couldn't finish. We didn't have room in tiny mini fridge in our hotel room so we didn't take home any leftovers; our waiter seemed almost hurt by our almost full plates of food. I usually don't like creamy sauces but my pasta was very delicious and flavorful and the shrimp was cooked perfectly (I find that with pasta, the shrimp is often overcooked).
The decor was excellent and everything looked very clean. I didn't expect much from a restaurant on the second floor of a mall but it was amazing. I will definitely try and come back here.