I think the Sarona visor looks great, but I don't fancy how it doesn't fit flush along the roof edge and how it overlaps onto the chrome side trim. Mine was purchased off Ebay from Taiwan and was already painted KH3 (black obsidian). All I had to do was clean the area, peel the two rows of 3M tape and BAM, fits snug as a bug. It cost $85 shipped and took about two weeks to get here.
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Here is the link, they are still in business. Mine has been on over a year now and still snug and secure - paint match is perfect. I believe they also do other infiniti colours as well.