The Work Sharp Ken Onion Knife and Tool Sharpener is Amazing. This sharpener is so easy to use and takes no time setting up. The instructions and quick guide are very descriptive and easy to follow for tips and ease of use. I sharpened a whole kitchen set from ok sharp to scary scalpel sharp and it only took me about 25mins. The only down side is you can't buy the extra belts with it on Guidefitter, but it does come with a complete set. This sharpener makes it so easy to keep your blades sharp. I haven't used it on any outdoor tool edges like on pruning sheers, brush loppers, lawn mower blades, etc.. yet, but I'm sure it won't let me down.