[Imp]

One last point as one assumes its designed for areas where the terrain is hard going.
The operator keeping one eye on the beasty fails to notice the tree root & trips over. In his efforts to save the remote while falling he makes no effort to protect himself & breaks his arm.
Sorry there are so many reasons why the mule is better, its major failing is a lack of speed but have a feeling it might win a race with this contraption.
A lot of work has obviosly gone into it a walking robot is tricky requirng several giros to help it along but I doubt if it could remain upright if subjected to any sort of shock wave.