I got it and didnt' like how it changed the finish. As the review says:
"The only possible complaint you might have is that after refinishing, the bezel was slightly less shiny and had more of a satin finish than before. Personally, I like the satin look much better anyway, but if you prefer ultra-shiny metal and don't mind living with scratches and abrasions on your device, this product may not be for you."
I've returned it and am glad i used it on my old iphone and not my new one.
It does help with the deep scratches but leaves a different finish then the original shiny metal. i prefer a few scratches to having a different finish.