I just bought this car yesterday and drove it 700 miles to my home. It drives great! A lot of power yet still fuel efficient. I averaged >30 mpg on the highway during my first trip. The handling is tight and responsive. The front seats are incredibly comfortable and supportive. The lumbar support is great. Even after sitting in the car for >10 hours I had no back pain or fatigue. I got a great deal on a 2 year old lease turn in.
I was between buying a BMW 3 series and Volvo S60. The BMW wons hands down for performance. I bought the Volvo because I loved the styling, it drove very well and was packed full of features for 10K less than the comparable BMW. Great value.
The electronic interface is very user friendly and intuitive. You can control everything from the steering wheel too! Love the bluetooth streaming audio, iPod interface, and easy controls.
None that I can think of yet! I'll let you know after I drive it more.