Great documentary.
Granted, I wasn't a LEO when I lived/worked in a decayed industrial city (I was an EMT, same sandbox, different job). Still, watching this documentary brought back a lot of memories and emotions, especially given the married couple working the same department, which is how my wife and I met as well. She even switched trucks to work my last shift with me before I started my current job. The dynamics of a corrupt city government, underfunded public safety services, community that hates you no matter what you do, and making shit pay. You kind of feel like you get sucked into a vortex at some point. When I started my current job, our class coordinator told us to "remember the mill" from which we came, and this documentary really did that.
As for my current job, I have a very different perspective than these guys. My only exposure to neighborhoods like these are field interviews or warrant service, and always with the right equipment and ample amount of manpower. We don't live in it all shift long, day-in/day-out like these guys (or some of you here).
Anyway, thought I'd mention the documentary to everyone here.