I use it mainly for the car (glass and inside) and dry to erase on a whiteboard (really perfect for whiteboards).
I also use it to remove dog hair on a small rug I have (I moisten the cloth slightly and I rub the carpet), it's pretty effective.
By cons, attention please do not use fabric softener when you wash them, it alters the fibers.
They absorbency probably less pronounced than the rags which have 30% polyamide, that is why I use it mostly for dusting, but for the price, I am very happy with my purchase.