We took a few walking tours in Italy, and this tour was - by far - the best. We booked a tour of the Colosseum and Palatine Hill. With full access to the Colosseum including the area below the floor and all the way to the 5th story, the information the tour added was very much appreciated. I have, in the past, had a more in-depth tour of Palatine Hill, but given the 4-hour tour, we simply did not have time to get into too much detail. That said, we loved our guides - they were charismatic, entertaining, and very knowledgeable. We also appreciated that they didn't try to go without the headphones. No matter where you were in relation to where the guide was standing or walking, you could always hear.