I get the same impression from this device that I get from most Trango climbing equipment - a really good idea that almost worked. The Cinch has some big advantages over the Grigri, namely its weight, size, and increased rope diameter range. But the rope handling just doesn't hold a candle to the Grigri. It's easy to bind the thing up when feeding out rope, and once it's locked, it's pretty tough to get it feeding again. Especially when your partner is frantically tugging for slack. The shorter lever arm gives less mechanical advantage, which makes rapping with it jerky. But if you're a skinny rope user, this thing is approved down to 9mm, so that's a big advantage over the Grigri.