I've been using one for about two months straight and absolutely love it. I love it so much that I've installed one on my friend's Vital Impact.

The fact that I can adjust the speed that the prongs fall away with a simple turn of a knob rather than adjusting the length of the cord is great. The rest is dead silent and pretty much bomb proof. It isn't extremely heavy, which is a definite plus.

I've installed about a half dozen of them since installing it on mine and it is one of the easiest drop aways to tune that I've come across.