Review on Advanced Kitchen Knife Sharpener, Ulwae 3-Stage Knife Sharpener for Efficient Restoration of Non-Serrated Knife Blades, Perfect for Kitchen, Camping, Hiking, and Daily Household Use by Trevor Rodke

I ordered this Prime but Revain made a mistake so it was a day late. However, as soon as it arrived, I unwrapped the box and tried it on two of my most-used favorite knives. I started out with coarse, but only a few strokes, then progressed to medium, which cost me many times more than coarse, and finally to fine, which spent about 20 light strokes. It worked exactly as described and both of my knives are sharp enough to shave some hair off my arm. I can't imagine what you could go wrong with it, especially at the price! I've seen at least one comment about the lack of instructions, but I'm not sure why anyone would need them. Coarse, Medium and Fine are labeled so you know where to place the knife blade. Blades for sharpening are in a removable cartridge. The sharpener is set up to hold it with the left hand and sharpen the knife while holding it with the right hand. Because the cartridge is detachable, you can flip it so you can hold the sharpener with your right hand and sharpen your knife with your left hand, whichever you prefer. There are two rubber pads on the bottom to keep it in place while sharpening. It doesn't get much easier than that. I've used many different sharpeners over the years (I'm 67) and this one works as well or better than most of them at a much cheaper price. If this doesn't last a few years I'll just buy another one - love it!