FWIW, I liked that movie. Didn't love it , didn't hate it either. I am a Tarantino fan though. Not a fanatic but still biased.
What i liked:
-Direction.
-Music.
-The verbal duels.
-The superhero-like main character.
-The 2nd characters, DiCaprio/Waltz/Jackson.
Which are all typical Tarantino features btw.
-Plus, the ever existent extreme violence is now presented with a more comic-like way, it is not so raw, hope that makes sense. Exception : the dogs eating a guy scene.
What i disliked:
-Too long, especially the last part where he got re-captured and he re-escaped was totally needless.
-Slavery is dealt with too clumsy/superficial/obviously. Same mistake with inglorious bastards and Nazism. He is trying to make political statements in those last movies but he is not ready for that yet.
-Scenario was kinda weak, not much of a story.
Kill Bill, Pulp Fiction, Reservoir Dogs are aeons better!
Still enjoyed it though