I'm the one who originally mentioned the stuff, and I was talking about the "Shower" version. I don't know if there's anything special about mobile home showers, but mine's a 70's-80's era, one piece (vinyl, or fiberglass, maybe?) with glass doors, and it works great for me with no scrubbing.
I think @funky-rat was the one who mentioned the outdoor version for mobile homes. I've used it on a wooden deck and a concrete driveway. It made a little difference but not dramatic. They weren't too bad to begin with, though. You can see tons of reviews (& pictures) online.