This sharpener Lansky makes it possible to give the edge to a knife that cuts well already but the edge is really "razor". By cons do not intend to repeat the thread of a blunt knife sharpener with this, it is simply impossible and it is not this why it was designed. In terms of regrets, we can also note that small ceramic bars are a bit too small in length to perfectly get caught in the clips, results tend to move, see to uncouple their homes during sharpening, it's pretty unpleasant.