Experience with "Scanner" for Paint Matching

[harrydunn]

Stopped by O'Reilly's this weekend and had them use their scanner tool to mix the 518 Medium Green on my truck for some touch-up. They used some cleaner wax on the hood which discolored it badly. He freaked out, ran inside for some more wax to try to fix it but did not. To make matters worse, he scanned the area where he had discolored it. I suggested he just scan in a non-waxed area since the truck is spotless and nice and shiny but he didn't think that would be good. Huh? Long story short, paint was too light. I went back the next day and just asked for '72 Medium Green and it matched beautifully which made me happy since the paint is 25 years old. Sounds like it is holding up nicely.

So, what is your experience with these scanners? I'm going to have my glove box scanned so they can mix up some paint for my steering wheel but am leery now!