never used one, I have a ceramic mandolin slicer to do julienne strips with when I'm too lazy to do them with a knife at work, it works great, I've worked with some people that like ceramic knives( usually small paring or petty), I've always figured I'd drop one and it'd break, but I cook for a living and work kitchens are pretty chaotic. I could see one being ok to use at home, Boker and Kyocera both make what looks to be a decent product, Kyocera makes the mandolin I have.