i did metalized paper from bay photo... the print itself seems OK but the mounting on gatorfoam is incredibly lumpy, so much so that it detracts from the image. printmakers in RH has come thru consistently for me with metabolized paper on gatorfoam - the mounting looks much better than bay photo.
i did a huge metal print of one of the JPL voyager posters at costco and it came out great.
rob
I haven't liked any of my metallic paper prints. The actual metal prints are great. I wish the metal prints weren't quite so expensive. I got my Rosette on 16x20, but that was on sale and it was still expensive. But it looks awesome!