Worksharp Ken Onion Edition

I've been training and collecting Japanese swords and karambits for a few years. Now that I'm getting more comfortable cutting I'm needing to up my game on maintenance and sword care. Your tips are excellent for a beginner by the way.
So I've tried some quick accusharp methods and hand sharpening techniques but I think I'm ready to upgrade to a power sander.

In the process of researching I came across the upgraded Worksharp Ken Onion edition. Its mostly for knives although I did find one youtube video where someone used the first model to sharpen his katana.

So I searched your website to see if any comments had been posted but my question is does anybody in the sword loving community have any reviews, pros and cons, on this powertool especially for katana blades. I've looked at the one in your sharpening video which looks practical but I have to strategic about my purchases (one@a time) if not my wife will ask too many questions.

The tool can be found at www.worksharptools.com or even at amazon with a price
Range of $130ish us.
Thanks

Martin
mlee.lac@gmail.com