I do lot of cooking,for home and for a commercial company. I had a mandolin slicer which never worked and so I was very skeptical on buying this. Bought this purely based on reviews. First attempt: 3 Potatoes,3 carrots and 3 zucchini. All cut into dices in less that 5 minutes. Then I tried the onions, the main reason I bought this and guess what... Not a single drop of tear and got chopped in less than a minutes. This is whao... Very happy with the product, works like magic.