Bizarrely, I am getting more into it. The second zone is very Mad Max and has a sort of atmosphere about it. I've just found incredibly annoying moments in it though. I'm playing as a hunter, yet the game just isn't designed to be stealthy at all, if you snipe a guy in silence, it will always trigger a wave of mobs. I like to take time and explore open worlds, I don't like the feeling of being rushed, but the constant waves of respawning mobs makes the game just a blast, blast, blast - pick up quest, blast, blast, blast and there are some really poorly designed enemies and strange AI. This style of game is absolutely fine, it's just not my usual taste.
That said, it's a few years old now. At the time, my opinion on it would probably be different.