I can speak for the 18th floor, red tower, and that it has a great view. Because of a mix-up, we were on the 10th floor for a day, and the view from there is sub par, being mostly rooftop. I would say that the view becomes notable starting at around the 15 floor.
I'm on the 18th floor green tower.. it's ok but there are other tall buildings near by so a lot of the view is blocked anyway.
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