A few notes to help your knife stay sharp longer after sharpening.
A freshly sharpened knife is very sharp — always hold and store it with the edge pointed away from your body, and keep it away from small children. If you're unsure about safe handling, ask the sharpener directly.
Avoid soaking the knife, especially carbon steel blades which rust easily.
Stone or glass boards wear down the edge much faster than wood.
Use a wood block, magnetic strip, or blade sheath, avoid tossing it in a drawer with other tools.
Don't wait until it's very dull — regular sharpening keeps the edge angle more stable.