Great labor saver! You can't get the kind of edge possible with the best traditional or professional sharpening methods, but it can produce a perfectly adequate edge, and it won't require anywhere near the same amount of skill, effort, or money to get and keep it. For something this quick and easy to use, it does a pretty good job, producing knives with a useful and safer cutting edge, and I now use it regularly. I should note that It did require considerable experimentation and eventual modification of the steps recommended to get to that point, but it does work, and using it has restored even our oldest cutlery to a useful condition again, down to and including even the half-century old Swiss Army Knives my wife and I carry. :-) That said, I should note that when I first acquired the thing, I was initially disappointed with the results, and didn't find it very useful at all. However, trying to cut up garlic, veggies, meat and such with a dull knife can be a very good motivator, and not always having the time (or gumption) for the full-fledged, traditional means of producing the very best edge, I kept after it, and finally ended up with usefully sharp blades again, although I pretty much had to throw out most of the recommendations for use provided by the manufacturer. You can choose to do the same or not as you wish, but eventually it did work, and continues to work well for me, keeping our knives sharpened to at least an adequate and usefully sharp standard, so I'm very happy with it. If you want to try this modified methodology for yourself, and with the caveat that your results may vary, please read on.

Right off, I recommend skipping that first, coarse (number 1) slot altogether. I can only guess it's meant for the dullest of dull blades, but it seemed to me that it actually worked against the goal of getting a useful edge, instead of helping the process along, so now I don't use it at all. Instead, start with the notch in the middle, the number 2 slot, not at the 90' angle recommended, but at more of a 30-45' angle, with the point of the knife down towards the work surface. If you don't hold it at such an angle, every draw can and probably will result in the very tip of the blade hitting the other side of the device every time it passes through, which I found counter-productive at best. Also, pressing down on the knife just a bit when drawing it through (again, not according to the provided directions) produced much better results, so a slight downward pressure on the knife is recommended with every draw. Start by placing the rear of the blade edge (nearest the handle) in the middle slot, holding it at the angle recommended, and with a little downward pressure, repeatedly draw it all the way through, until the blade will pass through the slot with hardly any effort or 'grab' at all. Note that newer, sharper blades will take little to practically no time or effort for completing this step, but duller blades can require an effort of several minutes or more of work. When you think you're finished with this step, the cutting edge of the blade should feel like it's at least fairly smooth and dangerously sharp, although there probably will be some tiny burrs (rough spots) here and there along the very edge (which the last step should completely remove). Continue to the next step.

Moving the blade to the 3rd slot, again holding it at about the same angle, and with a slight downward pressure, draw the blade all the way through. This step more or less just hones the blade, like a good steel, but it also should remove any burrs and such left by processing through the number 2 slot, as well as getting the v working edge all the way to the critical, correct angle, which is different from that produced by using the 2nd slot. Repeat until the blade finally passes through the slot pretty much effortlessly (remember to apply a little downward pressure with each stroke) and the knife edge is very smooth and usefully sharp. If it isn't very smooth and sharp after a few minutes of effort, try going back to the beginning step, this time putting a little more effort into the downward pressure, repeating the process as necessary until the blade ends up usefully sharp, or you are tired of trying, in which case, you probably should get someone else to do it, or bite the bullet and just send it off for professional sharpening. :-)

Regarding the included glove, It seems like a very good idea, and there's certainly nothing wrong with using it, so I recommend doing so. I would add that after trying it out a few times myself, it seemed more awkward than helpful and I stopped using it at all, so I can't really vouch for any added safety it does (or doesn't) provide. However, I will reiterate that it seems like a good idea, and I recommend anyone the least bit uncomfortable with a good, sharp blade use it. Also, the utility of the sharpener over the long haul remains to be seen, although I have been using mine for about six months now, so it has easily more than paid for itself, especially in saved time.

Admittedly, a better edge can be achieved and maintained using multiple stones and water or oil, followed by honing, but for months of easily getting and maintaining a perfectly acceptable, usefully sharp knife edge on kitchen cutlery (provided it was of good quality to start with), without the need for a large expenditure of effort or money, I recommend it.

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I have two favorite knives in my kitchen that are not expensive by any means, but have always been my "go to" sharp knives for cutting pretty much anything that needed sharp knives. Over the years, they both have gotten a little duller and although I could have just bought replacements, saw this on Amazon and gave it a try. These two knives after about 5 minutes of work each are now sharp as new and I will continue to use this product. I ran both knives through the three slots about 4-5 times, cleaned them off then did another 4-5 times through and they're as sharp as they were when I bought them. For the price, would definitely recommend to anyone looking to sharpen what was once the "sharp" knife in your drawer you were thinking of replacing!!

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Easy to use. I place it on a paper towel to catch any tiny shards. I make sure to wear the glove to hold it in place, and take my time running the blade through each stage. My knives are sharp again! I use a small utility brush on the slots, over the garbage can to clean any metal off, then rinse and air dry. IT’S EASY PEASY!

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I had a single sharpener that was OK but this is better. Easy to use. Good instructions. I used on different knives. Nice to have the protective glove. Well made. Nicely packaged. Can be used if you are left handed or right. Will buy again as a gift.

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Like the price,bought this for my case xx surgical steel is really hard for me to sharpen and this did not do the job, However it did a fair job on my kitchen knife set that advertised it would never need to be sharpening lol yea right,any how they will not shave your beard but the will cut meat much better than they did before running them through this sharpener so that's my experience with it yours may be different and I hope it's better for you but still I will get some use from it

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It's not too big, so it fits into a kitchen drawer. It comes with a protective glove in case you get too hot and bothered by the vision of having, at long last, sharp kitchen knives, and end up slashing yourself. I keep forgetting to wear it. It's light weight, but it has a handle and a rubber foot that keeps it from slipping. It's done a good job sharpening my knives. I recommend it.

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I love my new knife sharpener. I used to just buy new knives once they got dull- what a waste. This is so easy to use and only takes a few minutes to get your knife super sharp. I know I’ll get great results each time. If you don’t have one what are you waiting for?

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What’s not to like? I don’t usually do reviews, but I had to give a review on this powerful little tool, truly small price, but it does a mighty job! I could tell a difference in my knives immediately!

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My old sharpener was old and would take over 50 swipes to sharpen a knife. With this one you don't always need slot 1. A few swipes in slot 2 & 3, and my knife is sharp. Great value for the money, and easy to use.

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Seemed OK - Returned as cheaper units available that do the same thing

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I've used the sharpener several times it seems to work but requires more repetition than I expected.