We used Elysian Tour for our Xi'an and Chengdu Tour. Both our guides in the two cities were amazing! Helen's extensive background in history made our tour to the world wonder of Terracotta Army superb! We had no clue how these huge soldiers were built and for what they were made or how come they were all broken into thousands of pieces! She explained everything detailedly in a fairly easy way to understand with wonderful insights and information! I could be an expert now! Yolanda in Chengdu took us to see the adorable pandas and we were very happy about our early arrival in the Panda Base since the lovely ones were all out playing, eating with only two sleeping that we saw. Many thanks to Yolanda's advice. The Hotpot dinner recommended by her was fantastic! We both loved spicy food and this is absolutely worth a try!