The screwed-into-a-tabletop ones we used to have at school in the 80’s and 90’s were great, with the crank and rotating blades. Was easy to make razor-sharp pencil points.
At home, with my kids, we only have those common cheapo sharpeners with a single angled razor blade. They sort-of work, poorly.
With those it’s too easy for the pencil point to break off, often the planed curl of wood will snap at the boundary between the two wooden halves of the pencil. It’s not smooth, and very hard to get a nice sharp point with them.