The 2.4 is a solid engine. It will eventually need thermostat housing replacement, the belt systems wear a bit earlier than most, and the electronic throttle body goes bad very regularly. Because of how often these failures happen, there's tons of readily available aftermarket support and the parts are cheap.
Good, practical, solid car at an excellent price. Love the packaging of the Journey, with the spaces under the front passenger seat and the rear floorboards. Lots of space normally wasted in a car of that size opened up for use.