Does it work for a ball that has no holes? Absolutely!
Would I want to put a ball with plugs or holes in it? Absolutely not! Someone using sharp bevel on gripping holes will notice what I'm talking about if a Surface Factory was used to resurface their ball. I've also seen poorly finished plug work that doesn't get brought back to the same contour as the rest of the ball.
Granted, using abralon or similar pads on a spinner can wallow out holes, but it doesn't seem to happen to the same degree that I've seen from a Surface Factory.
The best resurface starts on a Haus or Cook Sphere machine and moves to a spinner with CAB sanding blocks.