Is is real?
Let me say first of all, I like "Treme" the series on HBO. And before I answer "drewyallop's" questions directly, let me set the stage—so to speak.
The central character in the show, Davis McAlary, is played by actor Steve Zahn. I know 10,000 people from New Orleans well enough to know NONE of them are ANYTHING like this cat, even though he is based on a real dude.
Treme is the hood, man. It is a place where I wouldn't go at night EVER. I drive trough parts of it, maybe one a year—in the daytime.
And that is often by accident.
I know LOTS of African-American New Orleanians, and numerous musicians, and for the most part, they get that "close to downtown" culture mostly right. The people THOSE characters are based on are more like folks I know. Of course, some of them are more or less playing themselves.
I don't know any Mardi Gras Indians, so I don't know how much they wear that on their sleeve, but I'd guess it is over the top of what is real.
Treme got some water during Katrina, but not enough to wholesale knock everything down. Thank God, because those old school New Orleans architecture is priceless.
But remember, Treme ain't the suburbs. And it isn't Lakeview where I live, or Uptown, or even the "Quarter." It is a place where, well... I wouldn't live, ya dig?
Now to answer your questions:
"How accurately (does) it reflect life in New Orleans?" - The city is unique, and the series NAILS some things. If rarely WHIFFS. But, like I said, Treme is a neighborhood. They may take the show to the "lower 9" or to some other part of town I wouldn't live in, but it seems to only show the Gotham City parts. Trust me, Archie Manning's Garden District Neighborhood is WAY MORE real New Orleans than Treme.
"The depiction of NO post-Katrina is grim." — Right after the flood, it was grim. And this is where the show is set. But it's WAY DIFFERENT now.
Mark this down: If you come to New Olreans for the Sugar Bowl, or for a Hornets game, or a Saints game, or the Jazz Fest, or Mardi Gras, you WILL NEVER KNOW THAT THERE EVER WAS A KATRINA. Until you go to a neighborhood, then you will see remnants. But in Treme, I don't see construction. Heck there are new houses going up almost EVERYWHERE else.
"It also shows a unique culture, centred on music and tradition, a rich stewpot of cultures, languages, race."
That's the best part, They get this right. This IS what the city is. A gumbo, in a bowl, where you can get gumbo in a bowl.
Ya dig?
"Is this accurate? And if it is, I'm going."
Come on.
Wher Ya'T?