I'll start by saying: my wife and I are not buffet people. But, we got comped buffet passes upon check-in, and with our MLife status got to skip the (HUGE) line on a Sunday brunch, so why not?
As I mentioned, I don't have a lot of buffet experience to go on here, but wow was this thing solid. All the usual food types were available: Chinese, Mexican, Italian, meat carving station, etc. Desserts were a plenty, and the bottomless mimosas were an amazing value. Also really impressed with the service!