Not too many ways a sharpener can go wrong. This one does exactly what it needs to do- sharpens!
I ended up ordering this to make up for the fact that I had to pay shipping on the other item I ordered. This one cost as much as the shipping on the other item, but it came with free shipping! So just by ordering this, my order was shipped free. Rather get a sharpener for $6, than pay $6 for shipping!