I always used a natural chamois before I bought one of these. When I first used it I was far from impressed, I felt it wasn't as good as a chamois but I persevered and now I would never use anything else.
It absorbs a lot of water and wrings out very well. It never leaves streaks and lasts a long time. Unlike a natural chamois it will not come to any harm if it dries out and does not become slimey if left wet for too long (although anything will if you leave it soaking for ages -_like weeks on end!)
I would recommend this product to anyone.