Great For Top Rope Soloing
I use one of these as part of my solo top roping system, and it works very well. Feeds smoothly and with little effort, and catches positively when weighted. I've never done any hauling with it, but I imagine it would work pretty well for anything under 50 pounds or so. Of course, like any "toothed" cam device, this can remove the sheath from your rope in short order if you subject it to heavy dynamic loading, so (like any rock climbing equipment), proper training and a sufficiently redundant system are mandatory prerequisites of use. Over all, a very well built and versatile piece of gear.