kev p wrote a review of Black Diamond ATC Guide on June 4, 2010
this is an amazingly versatile piece of gear. the teeth on one side are so useful for alpine and ice climbing allowing you to safely run thin alpine ropes, the fact that you can belay off anchor with a self locking device is so helpful in the bigwall climbing world. and as for me ill avoid dragging a gri gri up a long pitch any time i can. and you can repell with it! recomended.