Depending on which attractions you're wanting to see will depend on the value of this. We used ours at Top of the Rock and Empire State and one other location. Easy to use and pick up. You can collect it at any of the attractions. It's good value if you don't want to pay to see the sites/attractions individually.
The New York City pass was an excellent purchase. It gave us access to six of the 'must see' attractions. A great way to focus on which venue to see on a limited timescale. the booklets were easy to pick up at the first attraction, saved time on queuing for tickets and was great value for money.
The New York City Pass was the best option for me with the day and a half time allowed. I managed to squeeze in four out of the six options so didn't save as much money as I could of but the queue jumping saved precious time, so worth every penny!