SCT versus random orbital sander?

FWIW, I've looked at buying one of those tools and the Harbor Freight Bauer version has good reviews, seems to perform the same as the Eastwood SCT, has similar specs, and it's cheaper. It would not surprise me at all if it's built at the same Chinese factory.
It is. And it uses the same drums as Eastwood. I have a harbor freight one and it works really well.

Only Con so far, the drums are expensive and you’ll go thru them fast, though not as fast as regular sand paper or those 3M stripping wheels.