I am still pretty good with large bench stones, and I do love my Edge Pro. I use the Edge Pro for the customs I sell, but the Work Sharp for my personal filet and kitchen knives.
The Work Sharp has taken many who can not sharpen worth a hoot to a much higher sharpening ability. There are some learning curves as with anything.
You do not need the up scaled model.
Replacement belts can be had economically on Amazon, etc.
Assistance is readily available from other users and video instructions come with the units.
Tim

"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein

At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".