Pretty amazing.
Here is another company, in the US, that supplies some really amazing paint, including the same "type" of chroming systems. I have used their rattle cans once and it worked out very nice, just as advertised. Expensive, but certainly less than real plating.
And in my case, we "chromed" a fiberglass grill insert on a special design car. It looked just like the factory vapor deposited chrome crap on newer car plastic grills. Clear coated it with polyurethane and it still looks perfect 4 years later. But, as they say, your results may vary. Mine seem to from project to project anyway.
http://www.alsacorp.com/