We decided to check this restaurant out before a show. We had reservations, and were a bit under-dressed for this place. I would say at least a collared shirt.
We ordered drinks, appetizers, and the main course. We skipped the dessert. All the food was outstanding and some of the best we have ever had. The service was very good as well. My wife had the wagyu skirt steak that was absolutely amazing. My mother in law had the lamb chops and she said it was the best she ever had. I had fish, and it was cooked amazing as well.
If you are going to be in the MGM, I would suggest making reservations. You won't regret it.