As I go my Küchenprofi already 4-5 years, sometimes using about 2 a month, and the same opinion, I must give my experience for the good times !! It all started with a Actifry Tefal. This is well suited for fries without oil. For this I needed a French tailor. The first was of WMF. He has not done a lot of potatoes, because the knives were bent. Replacement did not exist, but "money back" Then came the Küchenprofi. Perfect. Cuts all varieties of potatoes !! Important is perhaps worth mentioning that you should definitely insert the potato parallel to the carriage ?! I always put the narrower side to the knife. And start carefully, to press the arm. If I notice that starts the potato to cut, pressed down and arm, ..... finished. I suppose the big knife, sits precisely in the holder, because nothing jumps out etc Cleaning super. Also in the dishwasher !! So, my French Schneider is stable and still works. Should have changed on the quality in the years something ?? Someone wrote something about "of linked review" !! I'll accept nich. This product is recommended !! Feels someone approached or agrees with me, please to reply !!