We also never needed a reservation, although, if you are planning to bring a large group you may want to notify them of this. I do remember them having groups/parties there.
We have never needed reservations. I am sure that if you called with a special request they would accommodate you.
We have never needed a reservation, but I think they would take one. It's pretty casual. If you are a large group, they would be able to put tables together for you. We walked in with 8 in February and they quickly got us set up.
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