I've had this car since Sept. and so far it is fantastic - a beautiful car inside and out! The only thing that I don't like is the city mileage but for a car this size it's not bad. My all around mileage is approximately 22.5 mpg and it is comprised of approximately 50% city and 50% highway driving.
It is beautiful to look at inside and out. Heated seats are great. Love the heated mirrors on cold days. The stereo system is great.
Since it is a luxury auto the only improvement I can come up with is to have fully adjustable passenger seats; the same as the drivers seat.