Nobody makes a revenge flick like Quentin Tarantino.
And nobody makes a movie with racists as the villains, while simultaneously having just a little too much fun depicting racism, as Quentin Tarantino.
Frankly I think reviews are a little superfluous. Quentin Tarantino is a known quantity. If you've ever seen one of his movies, you have a pretty good idea whether or not you're going to like Django Unchained. And if you haven't seen one of his movies, go watch Pulp Fiction.