You will feel ashamed for watching this.

Rating: 1/10 (17 June 2015)

If you read the reviews, you can quickly see there are two audiences out there.
One audience unabashedly loves ultra-violent films, and to some extent, finds the violence itself entertaining. That audience loves this film.
However, for everyone else, this film is a bit stomach-churning. For many reasons.
As every reviewer has noted, this film is over-the-top violent. Clearly the film makers loved putting the explicit gore on the screen, to the extent that they didn't worry too much about plot or dialog or consistency. Most of what little plot exists was just an excuse to put more extreme violence on the screen.
I was tempted to give this film a higher score, like 2 or 3 out of ten, because of Samuel Jackson's character. Oddly, as the villain, he was one of the few people on the screen you really empathize with. But I have to give this the lowest score possible to warn people who might otherwise mistake this for a watchable film.
Don't see this film. If you have seen it and didn't like it, make sure you post a negative review.
I saw this film mostly because of the high score on IMDb, which I now realize is because the ratings are jacked up by the few fans of the film, not the general audience. I will not make the mistake of paying attention to IMDb ratings again. The low metacritic score (58/100) is a slightly better indication, but still too high in my opinion.