I bought this specifically for multi pitch climbs so I could belay from up top with the device hooked to the anchor and I would be independent of that system. I like petzl a lot and I read up on my stuff before I bought this. I was pretty disappointed when I found that it took more work pulling the rope through the device than I used climbing. My partner also tried and ran into the same problem. I have since used the ATC guide and it feeds much nicer. I'm going to keep it, but not use it the way I wanted.