I have now had my car for almost a year and I really enjoy it. I have had to have it in the shop three times for the same thing, something in the front end makes a rattleing noise, they replaced the steering column and some other bar but the problem comes right back. I drive on asphault all of the time, my driveway is gravel and that is when you can really tell that something isn't right in the front end of the car. Also the brakes have overheated and had my rotors turned three times, didn't fix the problem. These are really the only problems that I have been experiencing with my HHR.
I love the look of the vehicle, completely different than the PT Cruiser. I also like the color options, mine is sunburst orange, very catchy.
Better quality in the front end parts, cupholder placement, noise in the interior too loud.