StepRanger - how does it do on rugged mountain trails?

Every spring we come up to our cabin property in the North Carolina mountains and start by clearing trails. This involves trimming brush and hauling off debris. This year, we used a StepRanger for that part of the task. This is probably the harshest terrain anyone will ever try to use one of these, and it performed well. It had some challenges trying to navigate the trails with stumps and rocks in the way, plus it rained one day and traction was a challenge on climbing, but the StepRanger kept going. This video contains footage on steep uneven wet trails. See how the StepRanger handled all this.