I tried the lunch buffet here a few weeks ago, and the food was pretty good.  We discovered the buffet on our last day in Vegas, after some horrible Studio Cafe experiences.  The flat daily rate seems like an excellent deal when you consider what you pay for food in Vegas.  The seating area was freezing for some reason, but our waitress was great.  She noticed that we were shivering and suggested coffee/tea, and she kept them refilled.