The drill has served me well for a full active climbing season. It has completely replaced my entire rack. On most of my climbs I now rely completely on the drill for all of my placements. At first it was a bit awkward drilling on lead. The weight of the drill can be difficult to manage one handed and beginners might be advised to carry a single wide range cam to rest on while drilling. However much of the weight lies in the external battery pack that you clip to your harness and after some practice I have been able to drill single handily with my stronger arm while hanging on my left. Also knowing that you can always rely on your last bolt it is possible to go further between protection than traditionally without compromising safety.