I purchased my car in 2010, with 126000km on the clock, with two previous owners from the same family, and service history from new. During my ownership, this car has proven to be quite reliable, with little more than scheduled maintenance required.
The engine, while not a ball of fire, is generally compliant and quick off the line. It uses neither oil, nor coolant, between services, but has developed a brief rattle while cold, which I expect to be valve/rocker shims requiring replacement. The gearing is slightly high, and will see you sitting at 100kph on the highway at approximately 2700rpm.
The gearbox and clutch are this car's weaknesses. The gears clash and grind if you don't change at just the right RPM, with very little margin for error, and the clutch in general has little in the way of feel, and the pedal uptake is vague, which makes even an experienced driver appear novice at times.
The steering circle is average for its size, and the suspension doesn't appear to be any better, or worse, than other comparable vehicles of its age and size. However, I have noticed in other Elantras, though not my own as of yet, that the suspension struts can seize if the vehicle is left off the ground (eg. changing a wheel, working under the vehicle, etc.) for an extended period of time. At the moment, the outer CV boots appear to show signs of cracking, and will need replacement in the near future.
The paintwork seems to hold up okay, though it's not a particularly great finish. The interior, while quite dark, is generally hard wearing and the plastics and generally durable with the exception of the satin-type finish on the centre binnacle switchgear and around the electric window switches, which can stain easily.
All in all, for the modest price I paid ($4750), I am happy with the vehicle. And if there was any advice to part with, it would be to look for a well maintained model, with service history, and in that history make sure the timing belt has been replaced at 90,000km/5 years, and every 90,000km or less/5 years thereafter.