When I sharpen a knife, I want it to be sharp! The ViperSharp gives me the freedom to adjust the stone with ease, so that I can get the exact edge I want. This system is so easy, even my kids can set it up and use it on their pocketknives. And as they say, a dull knife is a dangerous knife, so I’m glad there’s a system out there that they can use. On top of that, I don’t know of a less-expensive option on the market with as much engineered precision.