I absolutely hated it.
Not the presentation, which was the reason I went to go see the film, and did indeed enjoy. I was very excited to experience the old cinema presentation and atmosphere, what with the old 70mm film reel, the presence of an overture to start the film, and later an intermission, and so forth. That I enjoyed immensely.
The film itself I absolutely hated. I knew it was a Tarantino movie, and all the things that brings to the table, but it ended up being far worse than I had expected. The tone of the movie screwed with my head and resulted in myself feeling emotionally and mentally drained. Maybe that was the point, but regardless I didn't like it. I was confused as to how Tarantino wanted me to feel about certain characters during certain scenes. For example, the scene involving Samuel L. Jackson's "revelation" to the old man. I couldn't tell if I was supposed to feel as though Jackson's character was a badass for doing this horrible thing because "white people bad" or something. If so, I didn't; the scene was rather upsetting to me.
Basically, while the 70mm "old cinema" presentation was very neat, I absolutely hated the film itself and would not recommend it to people who are not big Tarantino fans.