Overall this is a really enjoyable exploration of "Wild Wexico." The story and characters are very interesting. At times, the overly honest brutality and racism depicted make it uncomfortable to watch. However, they do a good job of balancing those aspects so that they add to the story, rather than distract from it.
There are random moments when things turns to absolute crap to unnaturally force wild-west scenarios and/or uber-machismo. There definitely should have been some stronger editing throughout the writing and filming. Still, these moments are rare enough to brush them off.
This is definitely worth a shot for anyone who enjoys westerns.