Oh wow, that is pretty awesome. We have a machine similar to that for our gym. It doesn't go that high though. I hate the thing because even though it is stable the cage you stand in still swings around when you are fully extended. It scares the crap out of me.
Those things can be scary especially when windy I have used them a few times over the years and I would again if the choose was ride a roller coaster or go up in on of these LOL