[jmatta]

It works pretty well, but don't follow the directions. Let the paint set up in the chip for a half hour or so before rubbing with the solution; otherwise you'll wipe the new paint away, as well.

I've put multiple coats on the chip to build it up, let sit, then rub with solution. You need to rub a bit more, but it doesn't pull the new paint away.

Do a search and you will find a number of write-ups on the topic.