Views on food are so subjective. We are on Emerald currently and we would say that the food is as good as it has ever been. We have eaten mostly in the DR but have had breakfast and lunches in the buffet. Dining room servings are as per usual, no smaller in our experience.
My only complaint I guess was that the lamb shanks in the DR two nights ago were poor and the toast in the buffet is as thin as paper. Overall though, no real complaint from us.