1) The xenons and rear LEDs - they attract lots of favourable comments.
2) The interior layout and seating - dashboard is so intuitive and classy looking and the seats are way too comfortable, it's like coming home to your favourite armchair.
3) The reversing camera, although for me this was a retrofit (wish I'd specced it at purhase time) it is a brilliant addition to the car and my friends are consistently impressed, always asking me to put the car in reverse.
I absolutely love my car, it never fails to put a smile on my face and draws many admiring glances particularly when it is clean and gleaming in all its black glory. I cannot see anything out there within the same price bracket that offers such a great package.