Explorer pass was fabulous and allowed us so much freedom to see so many different attractions. Great to be able to jump long queues, good value for money.
Overall - very good experience. Bought 7 attractions pass, used them all in 7 days. The pass was easy to get and ready to use. However the location where we got was out of complementary guide books so we have to go to another location to get them.
Also the HopOn-HopOff attraction offer includes just one tour of your choice not all of them as it is written on this website.
So, if you want to calculate how much you would safe - giving that only general admission passes are included, it will be around 5 per attraction comparing to regular price.
Value for money explorer pass. The only hassle was going to different venues to pick up passes. All the 5 tours we selected were great. The pass also gave you a discount booklet to many other venues so we took full advantage including 15./. off at Macy's and Bloomingdales. Worth the money.