I have found these four videos very informational, the first ons is the unboxing, the second shows some of the details, the third shows more of the the internals and the forth goes over the functions. The undercarriage is much like a real machine, these videos are very convincing if your on the fence.
https://www.youtube.com/watch?v=-z2ZXMYTh9U
https://www.youtube.com/watch?v=pKginJmWN2o
https://www.youtube.com/watch?v=2FebV4-82HM&t=5s
https://www.youtube.com/watch?v=-7Et3-oHxHQ