> It cuts literally everything just fine My parents are the same and honestly the sharpness is fine for how they use their knives. I don’t know for yours but t

> It cuts literally everything just fine My parents are the same and honestly the sharpness is fine for how they use their knives. I don’t know for yours but theirs don’t cut just fine at all. They barely cut. It’s ok if you actually have to think and push through each cuts but a complete no go for any serious cutting. It’s a huge waste of time because it prevents any kind of fast work but they don’t know how to safely work with a knife anyway so they don’t notice. My father immediately cut himself the only time I actually sharpened so I stopped trying. Anyway an ultrasonic knife seems like a cool idea. The technology is common in industrial setting for cutting. I think it’s cool to bring it to a kitchen knife even if it always remains a gimmick.