I had been looking at the CTS since 2007, but the reports I read did not convince me it was the car for me. This year, however, everything I read was encouraging so I took the plunge and have very happy I did. My CTS is by far the best car I have ever owned. It does not get the best gas mileage, but that's not why I bought it. It is fun to drive, very comfortable, and the perfect size. It is the best looking car on the road (in my humble opinion!) and handles effortlessly. My next car will be another CTS if Cadillac maintains the integrity of the car.
Overall appearance, ride, comfort, and handling.
Back up camera would be about the only feature I can think that should be added.