I got these knives a few weeks ago because my previous knife set was super hard to sharpen, so I would find myself with constantly dullish knives. So far, that hasn't been a problem with these: After a couple weeks of use, as I felt the chef's knife starting to get a bit more dull, I just put it into the sharpening slot, slid the sharpening wheel ten times, and the knife came out super sharp in no time. I cut an onion right after sharpening (after rinsing off any metal shavings) and the knife slid right through the onion with little to no effort on my part. As someone who's been doing a lot more cooking during the lockdown, this set has been a complete game-changer. No more dull knives for me!