The go city pass is beneficial if it is used properly. We purchased two Philly go city passes, one adult and one child with the 5% discount from signing up for their email list. Be aware that some attractions need a reservation. We visited the aquarium, Otherworld, and did the true crime tour, the Revolution and Founding Fathers tour, and the ghost tour. Some tours were not running in August so they should have stated that. These included the Italian market tour, the movie tour, the street tour, the food and cheesesteak tour, and the magic tour. Definitely a bummer because we would have liked to do some of them. We got there much later than expected on the first day so didn't do everything we wanted to but I do feel like we got our money's worth. I added up and we would have paid $349 for those two days but only spent $140 for the pass. Do your research and plan carefully and it will be very worthwhile.