The first thing that anyone interested in this product should know is that this kit is intended to lightly scuff the surface of your car's paint to achieve the intended result. It is by design.  So if you are AGAINST any sort of shenanigans, this is not the product for you.This kit is NOT for the anal retentive car owner that easily stresses out from even the most minor wear on their car's paint.  If you have a $10,000 paint job on your Ferrari, you're probably not in the market for such a product anyway.  This is for the guy (or gal) who wants to personalization their import subcompact, and do it in a fun, cheap, and relatively safe way.With that out of the way, I am writing this review for how well the product performed as advertised.The way this kit works that you use the provided masking sheet in your laser or inkjet printer to print your design.  The masking sheet is a semi-adhesive masking film on a liner sheet.  After your design has been printed, you use a x-acto knife (which was, unfortunately not provided) to trace over the edges of your graphic, so it can be removed from the backing sheet.  Then, you apply a thicker white transfer film on top of the masking film to provide some structure to the film as you remove the liner.  The reverse image is applied directly to your car's paint, and then the transfer flim is removed, leaving the masking film on the car with your graphic in the exposed areas of the paint.  Then you follow a series of steps to lightly sand the exposed area of clear coat to achieve the intended effect.  Again, if you follow the instructs carefully, sanding your paint should remove only 1 to 2% of the top clearcoat.I used this kit to apply an engine rotor graphic my 2004 Mazda RX-8.  Unfortunately the paint color is Lightning Yellow, so the graphic was not terribly noticeable. I imagine on a black car it would be easily recognizable. Therefore I decided to remove it using my 3M headlight restoration kit which I had previously used to restore the car's headlights to a brilliant shine.  The matte image rubbed out very quickly, which was a testament to how light the impact to the paint really was.  It took way longer to remove nearby swirlmarks, which is the only downside of this product--if your car has lots of swirl marks and you decide to remove the graphic, you may have to do a larger area than the graphic to ensure 'even-ness' of the removal.  But other than that, the car looked exactly as it did before.  I was told the removal process takes an additional 3-4% of your car's clearcoat, so all told, it cost roughly 6% of the car's clearcoat, which I believe is an insignificant impact to the paint.  Most professional auto detailers will take off at least that much in a typical swirl-removal job.The only criticism I have against the kit is that it did not come with a x-acto knife, which is required.  I was expect to use it right away but had to defer it to another weekend because I had wasted time looking for a x-acto knife lying around and ended up having to go to the store to buy one with a new blade.Verdict:  Good product, but not recommended for light colored paint.  For best results, work slowly but diligently when trimming your graphic, and take your time with the sanding pads, using very light pressure.