The ATC Guide is an incredibly easy device to use. I had only used BDs figure-8 device before this, and I'm glad I made the switch. It pinches the rope very easily, and doesn't slip like the 8. There's a reason that you see these everywhere- they do the job, they're easy to learn, and there doesn't seem to be anything that you can't trick out with this guy. Paired with their Gridlock Screwgate Carabiner, it's unstoppable!