Assuming they are the same as the batch I bought last time-
Well, when I first bought these I was dissapointed in a thread or 2 that was loose and in the look of the hem on a couple... INITIALLY... I thought no good... didn't like the look of the back of them at first either..
I broke those loose threads off and after some time actually gave them a shot.
After using them they ARE Excellent towels and I use them on almost every car I do now for use with eraser, sealant or wax removal, etc.
If you use them with a QD which I don't use much... they will work very well (Much better at absorbing than most plush towels.)
I still use PS on my Sky exclusively but after polishing out any of the cars I've done lately I go straight to the rolled edge for everything except polish removal which I use the polish nap towels that are designed for that.... Allthough the back side of the rolled edge towels would probably work well for that.
I do NOT need any towels but I will be buying 12 more just because you won't find a towel like that for that price. I will continue to use them all the time on paint.