I brought a bumper to my local guys. I was unsure of what to expect so, I had them straighten it and get it ready for paint. I wanted to see how good of a job they would do with the prep first. THey did such a crappy job straightening it I sent it back. I hate to think how it would have looked if I had them chrome it.
There is a place in Minnesota that does show chrome with copper instead of triple zinc. Three time more expensive too.