We arrived pretty early, around 5/5:15pm for dinner and didn't have to wait long. We tried brunch a few weeks ago here and I would give it five stars. We expected the dinner likewise. Unfortunately, it was everything else but five stars. Very long lines, especially at the asian and carving food section. Nothing tasted really good, it is not worth the money. There are a lot better but cheaper buffet options in Vegas, e.g. M Resort or Red Rock. Both exceed this one. If you want to spend money in this price section, go someplace else like Wynn.
One star for dinner, five for brunch. I might go back for brunch but will definitely NOT come back for dinner!
PS: they gave us two hours limit, one day before holidays. Then, we would have to leave.