Stack has an amazing interior... a little too dark in my opinion, but still gives one the feeling of eating in an huge cave of some type. The service was okay I thought... a couple of the people in my party didn't like the waiter but I thought he was fine. The food portions are pretty tiny, but I still didn't leave feeling hungry at all. The filet was perfectly cooked and had an excellent flavor, as did the sea bass. Expensive, just like everywhere in Vegas, but it at least has some options that are somewhat affordable.