Frankly, 3db, I'm not sure what you're talking about. I've driven three of them, and a colleague at work has a 2014 convertible which I've ridden in, and the interiors are not uncomfortable or cheap or poorly constructed. The seats are very comfortable, and I'm probably in the 99th percentile of being difficult to please in that regard. The ergonomics of the seating position and the manual transmission shifter is equal to or better than the best in the world. The instruments beat anything Porsche has (and I'm a Porsche owner), and the feel of controls is pretty darn good. The optional leather has a hand comparable to the silly-expensive optional "natural leather" I special-ordered for my Cayman. I won't accuse you of talking out of your ass, but I'm not seeing what you see.
Nonetheless, the styling of the interior is not appealing to me. I prefer grace and subtlety, and the C7's interior is just plain over-styled for my taste. It seems to appeal more to younger buyers. I'd rate it just above the ugly Nissan GT-R, and when I see a C7 with that lurid red leather perhaps the GT-R looks better. FWIW, my wife likes it a lot, and thinks a convertible may be in her future. I'm not so sure... because the new Corvette isn't my kind of car, and I've owned three previous Corvettes, including a C6 (which I really didn't care for).
I think the C7 looks like it was styled by a 14 year-old boy in study hall, and the exterior fit and finish is not as good as the C6, no less a Porsche. I've grown weary of cars with long noses, where you essentially sit on the rear wheels, and the C7 is just as bad in that regard as my old BMW Z3 M Coupe, and almost as bad as the Z4 M Coupe. My tastes have also changed, and large displacement, slow-turning V8s aren't my thing anymore. (That new Ford flat-crank V8 looks damned interesting though.) So it's not as if I'm trying to convince you the Corvette is an awesome car to own, because I don't think so myself. Nonetheless, the C7 is a remarkable sports car, performance-wise, with better chassis technology than any sports car short of a few Italian supercars.