Bought mine new and have had absolutely no issues at all. As for power, it's a bit weak and my 2001 XC70 with the turbo was much faster, but all in all it's enough. Super safe...that is the main reason I got it. No ONE beats Volvo on that so I'll trade speed (I also had a S60R) for safety.
Adaptive cruise control. Collision warning, steering and those great seats (front.)
Turbo charge and get better gas mileage. I average 18.9 which is terrible in this day and age.