It's mostly what its title suggests, a story about a tough black woman, 44 years old, trying to survive. It's mostly her caper that moves the story.
The movie appears on neo-noir lists, so it's late in the game to alter the prevailing opinion.
I found the movie entertaining enough. It's rather overdone in places, which is the downside of Tarentino's work. Being hit over the head vs. being subtle. The multiple cutting during the caper's execution didn't quite work smoothly for me, too drawn out. I get a little tired of hearing Jackson expatiate so much in Tarentino's films. The music becomes a little too much of a bludgeon.
Noir moments are fleeting.