My wife bought a couple of the Aldi ceramic knives a while back. She likes them in the kitchen, although one of them has a black blade which I don't like much for a kitchen utensil. I think they were seven or eight pounds each, which isn't what I'd call very cheap for a kitchen knife when I've bought stainless Kitchen Devils for three pounds. The Aldi ceramic blades have what I would call a micro-serrated edge which, while not what I would call very sharp, tends to bite into things like tomato skin so that the knife actually cuts it rather than simply sliding over it which a sharper but smooth edge would do. I took one to Rough Close at the weekend to give it a try for food prep and I liked it too, it sliced bread very easily for example, and cut a string of sausages using just the weight of a sausage. I tried to make a feather stick with it and gave up on the idea pretty promptly because the edge was so blunt. The packaging warns about impact damage from things like dropping the blade onto something hard like crockery or a concrete floor. I haven't tested that aspect and I don't intend to unless one of the blades is damaged accidentally.