I'd say to be sure that the timing-belt and the water pump have been
replaced. Look for signs of lack-in-maintenance such as dirty air filter,
dirty engine top/side (from oil spills/leaks), check fluids and see if
they are clear, check tires for uneven tread wear... When you drive it,
listen for unusual noises... If anything doesn't "pass" your inspection,
than move on to something else and save yourself repairing problems in the
future. Hope it helps... good luck.