Having owned many BMWs, Audi, Acura and various other cars and SUVs, this S60 is the perfect balance of comfort and fun to drive. The old Volvo stereotypes are long gone. While it doesn't have the track or tech specs of a 3 series (like 50/50 weight distribution), it excels at daily driving by perfectly balancing performance and comfort. The S60 is smooth, quiet, composed, solid, quick, very comfortable with superb seats and firm suspension that is never harsh.
I recommend the Polestar modification that makes the vehicle faster, reduces throttle/pedal travel and makes power available more immediately. A loaded 325 hp S60 is thousands less than a loaded 4 cyl BMW.
I've had Volvos with all 4 available suspensions. Put some thought into your choice. Touring suspension is best at serene highway cruising, but has some lean in corners and more body motion in spirited driving. Dynamic chassis gives you very firm (not harsh) suspension with better control and minimal body motion, but you'll feel the road. The 4C options change throttle, transmission shift points, steering force, and suspension although suspension changes are negligible. The R-Design optimizes throttle, transmission, suspension, tires, and steering for performance at a cost in ride comfort. I have friends who swear that full-stop safety features in the technology package saved their lives.
Volvo is slow to adopt competitive technology. They're known for safety and yet lack a system like On-Star that can save your life in a crash. Volvo's electronics are a generation behind the competition, although version 3.0 software upgrade reduces annoyances. Direct fuel injection would improve performance and fuel efficiency. 2 years of free map updates sound great until you learn that you have to let your car run for 5 hours to update it. Volvo has no Google maps or internet connectivity for the nav system, which has rudimentary street information that can ruin your day when it doesn't know the difference between 21st NW and 21 St SW. Back seat leg room is tight.