I do not work here either. I believe Sunday brunch hours are 10:30-2:30. You should definitely call to confirm and make reservations. I know this is a popular place for dinner and usually requires a reservation. I would assume brunch would require a reservation as well. Everything here is yummy!
I don't work there, but I would highly recommend you to contact them and ask them. I can tell you their food and service is amazing.
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