Smooth, comfortable, and sporty ride; the V6 is very worth it. Takes corners surprisingly well and is seamless for cruising around. Been driving a 2004 Cadillac STS on and off and this car drives even better. Considered Honda Accord, Subaru, and Nissan. Went for the upgraded body kit and it looks great! Unbeatable in resale, maintenance, and overall value. No wonder it's the best selling car 11 of last 12 years.
V6 engine, smooth ride, quiet engine. Good mix of sport and luxury (especially for the price). Body styling!
All-wheel drive would be the only real improvement.