Excellent deal especially as it gives discount for teenagers, we did Empire state and the rock in one day, if subway was included it would make it much better .
The flexibility in the City Pass worked perfectly for us and we had time to see all we had wished for during the week long stay in New York. It worked fine to order over internet and easy to get access to at our first admission to Top of the Rocks. We can absolutely recommend it.
Good value for money IF you have plenty of time in the city. We were there for 3 days so didn't use a lot of the vouchers as some of the museums closed around 5-6pm the days we were there and the queues even just to redeem your ticket for the Statue of Liberty Ferry and Tour were so horrendous we didn't bother (we used the free Staten Island Ferry Instead). The Top of the Rock Observation Deck is far better than the Empire State as it isn't so crowded and the views are clearer and unrestricted.