I'm unclear on your meaning. I loved that car, where does "horrible" fit in?
Growing up with friends who had one or the other the plastics tended to fail a lot more often with the Geo models. Same could be said for the headliners and vinyl on the dash and A-pillars. The vinyl in one friends Prizm seemed to have shrinkage issues as it pulled itself away from all the corners before falling apart.
I can be biased against American cars at times, because at one point they did fall far behind the quality coming out of Europe/Asia. Ever since global models of cars took off they have improved greatly.
I worked for nearly 5 running an online auto parts store and yeah no car is perfect and they all suffer from some issue in the end.