I was disappointed with this tour. The guide mostly walked us around without sharing much historical or cultural context. Instead, he focused on his personal experiences in China and made negative remarks about Chinese people, which felt inappropriate and unprofessional.
At the end, he was clearly unhappy with our tip and insisted several times that we should give more, despite us explaining that we usually pay that amount and that this is why we choose free tours instead of private ones. His persistence made the situation very uncomfortable.