This is actually the second xB that I have owned! I haven't had any problems from this car. I totaled the first xB that I owned, and walked away (from a crash that I shouldn't have) without a scratch. With this xB, I have been hit in the rear, and though the dent was big, there were not injuries. Like most people, I wasn't to fond of the car, and then I got behind the wheel. I LOVED it. My first xB was a manual, and had a little more "get up and go," but I love my automatic for convenience.
I love the fuel mileage (I have gotten 36) ! I also always end up hauling a ton of stuff around, and there is plenty of space for things like this inside. My husband and I have also laid all the seats down and put an air mattress inside for camping. I wouldn't trade it! Great car, great price!
The only improvement that I would like would be cruise control. Though I do feel like the car could use a little more power, I am afraid that fuel mileage would be sacrificed, and it's not worth that to me.