I haven't seen it in action yet but it impressive on the ground
I've seen a couple of videos out with it stringing 1/4" poly rope to then pull haywire with. In one, they strung 2200' of rope in about 5 minutes and then repeated for the second run to complete the layout. Within about 2 hours, they had the haywire through the layout and were pulling skyline across the canyon. One of the videos was shot down around Grays River and the other one was shot I believe around Eugene on the old Bohemia claim.