I had aftermarket leather installed on one of my previous cars, an Audi A4. I would never have aftermarket leather installed again. They had to take off door panels to install it, and after I got the car back there were door rattles I could never get completely fixed afterwards. Also, they scratched two of the interior chrome door handles, the armrest installation was never quite perfect despite them trying to fix it twice, the seams on the headrests were sloppy, and overall the installation didn't look as nice as factory leather. It could be that I'm just very picky, but that's my two cents.