What's this sub's opinion on Work Sharp devices like this? : r/sharpening

This is a Work Sharp Precision Adjust Elite Knife Sharpener kit. I am

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This is a Work Sharp Precision Adjust Elite Knife Sharpener kit. I

Smith's 4-in Diamond Sharpening Stone - Handheld Sharpener with

VEVOR Knife Sharpener Kit. 360° Rotation Flip and 12-Whetstones and 120-10000Grit. Are you tired of the limitations of dull knives. It's time to restore their sharpness. VEVOR knife sharpener kit is equipped with 12-large-sized sharpening stones with 120 to 10000 grit, it helps you sharpen your knives quickly and effectively, bringing back their unparalleled sharpness.

VEVOR Knife Sharpener Kit 360° Rotation Diamond Kitchen Chef Knife Sharpening Manual with 12-Whetstone 120-10000 Grit

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Horl - 2 OAK - sharpener with diamond and ceramic disc - Made in

which would be a better option? : r/sharpening

ADJUSTABLE SHARPENING GUIDE- produce precise edge bevels from 15 to 30 degrees. motor- 120 Vac 1.5 amp. Duty cycle-1 hr. Continuous VARIABLE SPEED

Work Sharp Ken Onion Knife Sharpener Tool - Adjustable Knife Sharpening System - For Knives, Scissors, Serrated Blades, & Tools