I have to agree that the Sheraton Brunch has really taken a dip in both quality of food and quality of service. The last time I was there I had to wait 30 minutes for them to refill my water (which I am paying for.) I think the new manager of the place is either goofing off or just does not have the management skill to manage the restaurant, which is called The Living Room. This is really sad since the quality of the Italian restaurant Rossini right next to them is quite good. I had dinner there the other night and the Malaysian Ambassador was dining next to me. You have to think that the quality of food has to be of a certain level when foreign dignitaries are dining there.
I did tried the Westin Hotel Japanese restaurant brunch which was quite good, with lots of seafood. I think the customers on Sundays are 90% Thais and only 10% farang.