How well was Django Unchained received by the black community?

[Patrick Bateman]

I was rewatching Django Unchained yesterday and for me it's one of the best revenge movies and for me it's always fun to watch it.
I read a bit about it on IMDB and I noticed this bit:

During the filming of one of the dinner-scenes, Leonardo DiCaprio had to stop the scene because he was having "a difficult time" using so many racial slurs. Samuel L. Jackson then pulled him aside telling him, "Motherfucker, this is just another Tuesday for us."

Click to shrink...

So, with Tarantino being a white director, the "savior" and teacher of the black character being a white, German dentist, the era of American slavery being used as the background of a Hollywood action movie and this movie being full of racist slurs:

How do black people think about this movie? Is it seen as a movie of black empowerement or as cultural appropriation?