We were very lucky to find this place on airbnb. Owner responded all your questions very quick and nice, room was clean, simple and modern, it was just fabulous.
nothing blocked the view from 53rd floor, gym, pool, bar, were downstairs but no Casino, it means quiet and no craziness in the lobby.
Elevator was amazing. we never waited more than a mins or 2, even we were on the 53rd floor.
we definitely recommend this for my friends.