This is the handiest kitchen tool I own, and believe me I have them all. It slices all harder fruits and vegetables in the same size easily. This promotes even cooking and consistency. The secret is you must slice potatoes, onion, carrots, etc. in smaller 1/2 inch slices before putting into dicer. It only takes a matter of seconds, as the time is peeling them. If you do not force it, and make sure you cut pieces into smaller slices before dicing, you will be amazed on the time it saves you. Great purchase.