We are a family of 5 from US and booked this tour way in advance with Lily Tours. Lily was great to work with while booking and was able to answer all our questions and accommodated additional requests for the tour. Michael Chang was our guide on this tour. Michael was very knowledgeable about Xi'an and the tour itself. He is SUPER nice and a very professional guide. He was very good in camera too which was very important for us. The lunch he brought us too in the Terracotta area was excellent! The Biang-biang noodles of Xi'an was the highlight:) Michael waited patiently for us as we took our time biking all of the 14 kms of the City Wall. Then - he brought us to the Muslim quarter to try out some local food. Michael - you are the man sir! THANK YOU! - Danny and Lea Martinez and 3 young adult kids