We arrived at the ticket office on the day we had booked for to be told that the next available tour was not until later that evening. We were able to switch our tickets for the following morning, but suggest you check that the time you want is available.
Having said that the view from the top is amazing. Better than the Empire State Building? Debatable as you can see the Empire State Building obviously but you cannot see the Chrysler Building.
Best view of the city I've ever seen! Everyone in our group had a great time. We definitely recommend going up for the sunset so you can see the city at dusk and at night.
Excellent experience! We had booked a night time view but the weather was awful raining hard, but we were able to change our ticket to the next day when the weather was better. Staff very accomodating, and experience was fantastic, great views over the city, well wort a visit.