How about Xinhui Hotel?

I went to the buffet there with my friends a few days ago, and it felt good and cost-effective (38 yuan/person). The dishes were abundant (16 hot dishes, 8 cold dishes, 4 soup, 4 staple foods, 4 pasta, 4 fruits, Sprite, Coke, yogurt, rice wine, juice, beer, white wine and tonic wine), and the service was in place, clean and hygienic.