Texas de Brazil is a good steakhouse and I really like the salad bar.
It is very expensive but similar for higher end all you can eat buffet style restuarants in Vegas. I tend to enjoy other styles of all I can eat places like Korean but each have their own flavors so it is nice to go on occasion. I recommend going in small groups and not larger parties for the dining experience. All the meat that is brought tableside is cooked excellent and you are offered it cooked in the temperature that you want. Also, you can ask your waiter to have any meat brought over to you.