Yep, outside of a little rust on the Allen-head screws (as seen in the photos), and that mostly from knocking off the Plastidip when taking the plate off to wax behind it. I had it on for almost three years, including NE Ohio winters. I would definitely recommend paint or something on it, though.
I certainly can't take full credit for the idea, as I based it off of something similar but not identical that someone else did (unfortunately, I forget where I saw it or whom to credit). But the price was right, and it served me well.