Duster....

not the car but the cleaning tool. Need to get a new one. I have a California Duster that I have had for a very long time. Have never cared much for it, the wax streaks that it leaves behind are a pain in the a**. I use polish from Griots Garage and noticed this.....
http://www.griotsgarage.com/product/ultimate+micro+fiber+car+duster.do?sortby=ourPicks in there catalog the other day. Anybody ever use one of them? Any opinions on it? Don't worry, I am not like some folks that will give you a hard time for voicing your opinion.