I purchased the 3 activities and visited Top of the rock . empire State building and 9/11 Thoroughly enjoyed the experiences and my voucher was good value for money . I had no issues at all using this voucher , it was just scanned at each activity
Was very happy overall but found that we still had to queue for many things and could not bypass the queue because of security checks.
The Statue of liberty had a two hour wait and then again a wait when you got to the island. Hense we did not do this activity. This security is our of your hands but it is still annoying to have to wait for this amount of time. New York was great at Christmas but the crowds were way more than we expected. We still had a great time.
Lots of places to choose from, our time was limited so plan out your days in advance. We used the Big bus as a way to get to our visits and learnt a lot about the city from the commentary on the bus. Listening to the local people talk about their experiences of 9/11 was very emotional, but they want to share their story with others.