Originally Posted by wermbang
I have used one for many years. Just make sure its clean everytime you swipe, haven't scratched a vehicle yet. I also chamois after it too, but the blade gets most of the water out of the way.
If you do get fine scratches they should buff out anyways.
+1 on that. I always wipe the blade after every swipe. Never had a problem with scratching and I only have to use 1 towel to dry even the largest of vehicles.