The first day I brought it into the classroom, the kids weren't sure what to make of it. I had several students who looked at the sharpener and told me I was crazy - this sharpener couldn't be better than an electric one. This sharpener quickly won over all the skeptics in the room. Students gave several reasons for loving the sharpener. They liked that it was quiet, effective, and produced what is quite possibly the sharpest pencils known to man. In fact, several students appointed themselves pencil sharpener ambassadors. If a new student or visitor needed to sharpen a pencil, the ambassadors will help the newbie learn how to sharpen their pencils. My electric sharpener now stands abandoned in the back of the room.
When I loaned out the sharpener to a fellow teacher whose sharpener had broken, he was surprised at how much the students loved the sharpener. He was also impressed by how efficiently it sharpened colored pencils which are a bane of the electric sharpener as they somehow kill them off. Even if the colored lead broke off in the sharpener, it was easily removed since the blade is removable. Also, when my fellow teacher borrowed the sharpener the kids in my class were disappointed to learn they had to use the electric sharpener. I didn't realize how loud it was until my kids had been using the manual sharpener.
I now tell my fellow teachers that they should invest in one of these sharpeners - they are quiet and exceptionally efficient.