I am not as impressed with the food quality at Super China Buffet as some other reviewers. They do have an amazing selection, but I would not call it outstanding food. It's OK, but it's been sitting around in a buffet for a while (i.e. not fresh out of the wok), cooked in quantity, and the vegetarian entrées are quite limited. It is all-you-can-eat, and reasonably priced.
We have also never had any problem with having to wait for a table. You might have trouble on Friday and Saturday nights at 7 PM, but even then, you probably won't wait for more than a few minutes.
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