Great for bringing up a second on belay. It auto locks and you can just hang out and feed rope through as the person below you climbs. Cheap. Great as a backup device as well (can be used to rap). Always have it on my trad rack. If you're only doing single pitch climbs you don't need it. But if you want to belay your second easily by attaching this to the anchor it's a nice devices to have. Great
This review was written in the old system and had content requirements that are different than reviews written today.