The series is just so well done. it's the most dead-on portrayal of what it's really like being there, with only a few minor exaggerations for the purpose of the viewer.
Does anyone know where it was shot? As Leatherneck said, that's really very much what it looks like, the greenery and trees around irrigation canals as opposed to open desert everywhere (At least where I was, more to the West around Fallujah and Habbaniya)