Our tour guide was soooooo boring!! She was very knowledgeable about the history but had zero charisma. I have been on many many tours, and she was by far, the worst. She didn't even make sure the group was following her more than half of the time. It was a large group and we were walking down very busy streets it was very easy to lose her and she gave, what it seems to me, was a private tour to the couple upfront. Everyone else was trying to keep up. Even with the microphones, it was difficult to hear her. She mumbled and spoke very low. I was really very disappointed overall!