Sounds like another snake oil product to me.
How could it possibly not rub dirt and dust right into the paint surface?
Between washes I spray the top surfaces of the car off with a spray nozzle to blow the dust off then dry it.
Takes all of ten minuets.
I just don't see a $6.00 cloth working the miracle it says.
These have been around a long time. I got one for my dad in the eighties. Seemed to work pretty well.
But that was thirty years ago & who knows if it's the same.
Some quick detailed & microfiber towel might be better.