No
It helps to have one on weekends. The restaurant can fill up.
No, the Café requires no reservations. I do not know if the upstairs restaurant. It's my guess that unless there is an event no reservations are required.
May be for a large group, otherwise you don't need one.
No, you do not.
I don't think so~ I was walking in without a reservation last time. But never hurt to make one.
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