We have this knife sharpener risen since he fared in the Stiftung Warentest GUT, and what shall we say? Especially easy to operate with the handle to hold on very well thought out. Our knives were really all very sharp again. I would say that they were back as sharp as if they were new. But you should really careful sharpening and without much pressure otherwise you the knife just broken up. What I find a pity that you can not let sharpening bread knives here. The you have to bring to the blacksmith anyway. If you've bought in the life ordinary knife and attending NEN Euro spends more then you have along with the knife sharpener for a lifetime peace and may the knife tolls. then also inherit if you handle it well. Full 5 stars