Most of the tour guides were friendly and very knowledgable about the city. I did find a couple of them to be a little heavy handed when it came to asking for tips.
I bought this pass on a "special" offer at about $100 and, at this price, it is a very good deal for an active visitor (or resident) who intends to visit many attractions in a short time. The 9 days of validity are just about right. The possibility to pick up at any one of the attractions is a very smart move that simplifies everyone's life. The purchase discounts at stores should be more prominently advertised; I missed using mine at Cloisters.
Highly recommended
Really convenient, was nice to jump the ticket queues. Loved the fact we got the audios on the Empire State Building, was well worth the money. Only downfall is that there is perhaps too many museums in the booklet