I feel that the Mandarin has it's good nights and it's bad ones. Sometimes the food is delicious and others like it died. I like their plum sauce and egg rolls, not so crazy on the spring rolls. Alot of times their sweet and sour sauce tastes too much like ketchup and the sauce is very running and not thick. The chicken balls can be good or very doughy...
Overall it is one of the better Chinese buffets but if you want great Chinese food I recommend going to a non-buffet restaurant where the food is fresh.