It was a nice ride through the city to see the sites. It was nice that you generally did not have the same tour guide twice as the all had different perspectives and bits of history to share. The only disappointment was that we actually thought the tour by night would be different and not identical to the day rides.
We love the Hop on and Hop off tours. We always ride it around once and decide what to see the next time around. Guides are knowledgeable and give tons of information about the city. We were so tired and did not do the night tour. Our only complaint is the wait time between tours.
The Hop-on Hop-Off bus was a fantastic way to visit the beautiful city of Philadelphia...I was only in Philly for 2-1/2 days so using this bus was great. The night tour was wonderful - I highly recommend this company.