Can a reconditioned bumper pass as New?

I was just rear-ended in my 2006 model - near new Civic. The impact was hard enough to slightly warp the trunk, but the most notably the driver was a 90 year old man who stepped on the gas instead of the break after hitting my car and further sandwitched my car between his and three other stopped cars infront for a good 5 to

The repair shop is suggesting a bumper reconditioning instead of replacing the bumper. Can a reconditioned bumper be as good as the brand new bumper? Or can the bumper loose effectiveness, as small as it may be - given it has been thru an

Thanks, Ben