My mom who is 86 and I bought the two-day pass. Every guide we had was phenomenal and we hopped-on and hopped-off many different times. Since my mom has to use a walker or wheelchair most of the time it was a great way for her to see all of Philadelphia and not feel like she'd missed anything. The employees were great about loading her collapsible, manual wheelchair on and off for us. The first day I sat on one side of the tour bus and the second day I sat on the other to get a different perspective. Highly recommend sitting on top if possible for an unobstructed view. The tour the first day gave us an insight on sites we might want to investigate in depth. The only negative I had was trying to figure out where to pick a bus the very first time. Once you get one of their brochures it tells you the cross streets where the bus picks up and you begin to see which bus sign to look for. It's been three weeks now since we took the tour and my mom still raves to everyone we meet about how great the bounce-on, bounce-off tour and guides were!
The entire staff is knowledgeable and friendly. This is a great value for the price. We hopped off to what we wanted up close, then hopped on to see the rest of the city from the comfort of our seats.