^ Hmmm, I am pretty certain that I stated in my previous post that I've used the stuff. I commented simply because I've used it. Read again bro. 
Yea, I did and corrected. You must have posted prior to my correction.
What specifically didn't you like?? Curious to know, since my results even impressed my painter.
The two main things about it that I didn't like were;
* While the product looked great from a few feet away, it certainly didn't close up. You could still see the chip marks, except that they were painted now. I've been able to achieve much better results using a factory touch up pen, fine paint brush, use a 1500-2000 grit sand paper, polish, and seal. Two things I will point out though are that I am very fussy, which is why I didn't care for Dr. Colorchip. I'm certain most people would be more than fine with the results it gives. Perhaps I should of clarified that earlier. Secondly, most people do not have the tools to replicate my personal process. You mention sanding a paint surface of a car and most people run in the other direction.
* The second thing I didn't like about this product was it's durability. I used it on my parent's vehicle and within approximately 4-5 months the same paint chips were back that I repaired.
If people are happy with the results it gives, I would highly encourage them to keep using it. It's simply not for me, nor every other detailer that I know. To each their own, right?