I am the cook in the family and already a huge Ninja fan owning a Foodie, Foodie Pro, Never Stick pots/pans, toaster, and various kitchen accessories but these Ninja knives just top it off! They are sharp right out of the box but have a built in blade sharpener on the side of the unit. I donated my other "popular" brand of knives to Goodwill and will never look back. Trust me when I say you will not be disappointed in this purchase!