No question the 6th gen ZL1 provided a lot of "Bang for the Buck" out of the GM Performance line. I added darn near $11,000 in options to my C8 build just to keep pace with what came standard on the ZL1.
Having said that, the 5BW is in a completely different league than the ZL1 and dare I say even in some respects the C8 Corvette. While the interior of the Corvette looks good, there are some areas that are not up to the same level as the Cadillac. Even though you get carbon fiber, alcantara, and leather on the interior door panels, Cadillac still had to cut cost somewhere so you get the same shitty plastic door interior door bottoms as the Camaro.