so much fun. I even purchased the wrong day and they had no problem swapping it for me. :
An excellent way to see the historical city. Guides were knowledgeable. The buses ran regularly and the off/on stops were clearly marked
We ran into a problem with this as Obama was speaking at the Library in Philly the second day of our 2-day tour package. Would have been nice to know that they would not be going to half of the stops on that day due to the Obama speech, we could have adjusted which things we saw on which days. So do your own homework to make sure of any street closures before doing this tour. That said, the tour itself was pretty cool, friendly and knowledgeable tour guides... Buses are 30 min apart on average but can lead to long waits for next bus at some stops. We experienced a 50 minute wait in one case... plan ahead...