Has anyone on here got any experience of using them? I watched a team installing cables for AV equipment on a cruise ship constructing project and they seemed well practised in using them and they had the advantage that there were no ladders or other step ups getting in the way of other trades or indeed people from those other trades ?borrowing? such items. Possibly it would take a while to build up leg strength and confidence to be completely agile on them , I would be worried that if you tripped over or got knocked then once you go beyond a certain point it is going to be quite a fall, at least with a step ladder or step up you have a chance to leave it if it starts to move and land possibly a little heavily upright.
GH