When looking for my first car I wanted something affordable, reliable, and good looking. I bought it used with about 55,000 miles. And over the course of the last 4 years with this car I have replaced the ignition 2 times, replaced my alternator, had to have the trunk fixed because it wouldn't open, had my brake shoes fall off while driving (probably not a defect with the car, but it was one more thing I had to pay for), my power door locks broke causing the driver door to not open, which meant crawling through the passenger door. And the back door open sensor is busted. I have a power steering fluid leak. And a valve in the engine blew, which was approx $350 to replace. Just be wary.
Fun to drive, great gas mileage, responsive steering.
Recall ignition, door locks, and alternator. I have heard too many stories about these problems from other Focus owners.