I love my black diamond, Platinum XTS. Had an '08 STS, and the XTS is a much better build quality, more attention to details, and far better interior. (And believe me, I know this car! I hand wash it every week, as I did my STS.) Sure, there are things we all might have liked (auto high beams, messaging seats, power folding mirrors) but there really is no perfect car, especially without a much higher price tag. I've had no mechanical/problem issues, and love all the tech. I love the new CTS' looks, but I think I'd rather have my XTS. I think the CTS would be more "back to the future" to a sporty environment, closer to my previous STS. Done with that for a while. Now it's about luxury and style.