If you like Tarantino movies, you'll love it. It is what it claims to be, 3 hours of Jamie Foxx shooting slave masters in the face. If you go in expecting a period piece discussing the complex relationship of slavery in antebellum southern states, you'll be disappointed. If you go in expecting Inglorious Basterds, you won't be disappointed.
And aside from some of DiCaprio's trademark ACTING, every performance is great. I'm a big Christopher Waltz fan now.