I bought my ion almost three years ago with 22k miles on it. I've driven it every single day since then and have not had one single problem with it. the only time a mechanic touched it was to change the oil. its my first saturn and i have no reason to not buy another, my only complaint is that the suspension feels like its getting kinda mushy. Likes it's not as tight as it was when i bought it.
Lots of space, good gas mileage, durable, I've taken this car down all kinds of unimproved roads with no issues. It's my off road sedan!