I think it has Tarantino's best writing. Unfortunately, it has one extremely racist scene that doesn't really fly today in mixed company. That's the main flaw. You'll know the scene when you see it. You just have to think of the dialogue in that scene as representing the characters, not Tarantino himself.
It's also very much for the better that Tony Scott directed it instead of Tarantino. Scott presented the story as a straight-forward narrative with a good ending that delivers on what came before. Tarantino originally wanted to present the story with a fragmented time-line like most of his other films. But having read the original script, it works much, much better as a linear narrative. His fragmented time-line thing works well in Pulp Fiction, Kill Bill and other films, but it wouldn't have worked that well with this material.
Definitely see it. It's an excellent film. I think it's better than any of his other stuff besides Pulp Fiction.
One of the few film scenes that makes me uncomfortable. Just not a fan of it at all.
The movie is better on the second viewing imo, at which point it struck me almost like a parody of romantic films.
spoiler (click to show/hide)
especially the scene after he kills Drexel and Alabama starts crying before admitting it's "so romantic"