The Black Diamond nForce is the coolest-looking ascender on the market. It is loaded with design features never before seen on an ascender, including a tricked-out rope cam that gives multiple finger options for taking the rope on and off and a handle that moves and assists in the rope camming. But it's not just the fancy features that caught our attention. The ascender uses an oversized clip-in point that means you can push through the gate of most locking biners. Simple yet brilliant.
Overall, we prefer the Petzl Ascension because it is lighter and slides up the rope easier. However, we still like this ascender and would not hesitate to use it on a big wall. The extra features and cool look make it a great device to have on your aid rack.