I recently visited Thunder Valley in Lincoln, CA to have brunch at The Buffet. I took my wife and oldest daughter. The price was reasonable, costing us around $35 total. Pretty good for all-you-can-eat, including beverages. They have fruit, oatmeal, muffins, two omelette stations?, french toast, pancakes, bacon, sausage, a selection of Mexican and Asian foods, and more. The server we had was very attentive and kept our drinks filled without us needing to ask. We'll definitely be back to enjoy the food and service.