EPRINEX 99.9% Effective Pour On Antiparasite

What's the take on this stuff? Has anyone used it with success?

"EPRINEX® (eprinomectin) kills more species and stages of parasites than any other brand. Period.

39 species and stages to be exact. Everything from worms to biting and sucking lice to mange mites to grubs and probably that other one you're thinking about. And with up to 99.9% efficacy."

http://eprinexkillsit.com/