Yes it is open to the public, if you're looking for great views of the city this isn't the place
It's a restaurant. If you book a table you can get in. I don't think one can just walk in just to visit.
You probably need to eat or drink something. It's not really just a viewing spot.
Anyone can go there without a reservation.
I walked in on an evening to grab a couple of beers and enjoy the view with friends. Great spot
It helps to have a reservation. But you can come in and ask if there is an open spot. It's rather small so they go by reservation.
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