Largely solves the greatest learnig curve problem of knife sharpening: maintaining the correct angle. The fact that it does it for both sides at once is amazing, making it possible to switch back and forth without resetting the blade, is incredible. Even though they claim that it works well for any size knife, it is, in practice, way easier to maintain the angle with "full size" knives, as opposed to, say, a paring knife or pocket knife.

Great product. From fit to finish it is made with a very specific purpose in mind. To help sharpen your knives perfectly! The adjustable angle guide is easy to use and the clamp holds the blade perfectly.

I have been sharpening my knives by hand with diamond and ceramic stones for the last ten years with relatively consistent results. Maybe I’m not quite as consistent as I thought because this Anystone Sharpener helped me put some of the sharpest, cleanest edges on my knives in half an hour.

All that being said, I’d love to see this product machined in aluminum.

Easy to use and effective. Comparing to others, it's more simple, more useful. I like it. Just to say a cons, not enough grip on the knive from the clamp. I have to use a piece of rubber from bicicle tire. It will be nice coming from factory, like in other sharpeners.

It works exactly as it says it does, for sure a must buy if you want to treat your knives well on any old whetstone. I've got a cheap (but good) whetstone but I get 2x the quality out of it using my Anystone.

Shipping to Holland was Fast! The sharpening is amazing, it really helps with a consistant angle! Cant wait to improve my sharpening more with the Anystone!

Versatile, very simple to use and very convenient.
It helps sharpen a knife while keeping the correct angle, even if you have no prior experience in sharpening. That said, one should still understand the basic concept of sharpening. This device eliminates the need for skill in maintaining the knife’s angle on the stone.
Furthermore, it works with all sharpening stones you may already own. I give it five stars for its simplicity, practicality, and price.

Great guide. Easy to use and will get the best out of your preferred sharpening stones. Best on blades 1 inch or wider. Excellent for kitchen knives. Would recommend.

Apparently I stink at freehand sharpening. This is the tool I needed. Got them sharp now!

Good quality pieces and produces good edges with minimal passes

Well built! Easy to use…wish I would have had one of these when I started my sharpening journey. Great product!

Such a great tool for keeping your angle steady!It helped me get my knifes razor sharp.

Well done on creating the best sharpening guide I am very impressed with this and can Highly recommend it

Great tool, works as intended, my blade is super sharp, I love it

Easy to use and well made. Would recommend