Chevrolet: 2004 - any important issues?

My daughter is looking for a car for her small family and has found an '04
Malibu with 2.2L engine and AT. Are there any common problems we should know
about? The P/S reservoir is a bit low... any special concern about the power
steering? It has orange coolant (my guess is it is original) with only a bit
of cloudiness and no significant varnish visible behind the oil filler
baffle.

TIA!

Mike