I completely see why some people really like this movie (director Quentin Tarantino among those that do).
The movie may have been slightly cringe-worthy when I saw it (mostly the way the director relishes in the dirty art he has created), but in retrospect is fluff compared to a lot of the movies I've seen since then. Even though this movie is pure, unadulterated carnage and heinous acts throughout the entire course of the film, it had a redeeming quality.It's hard to pinpoint what made this movie so appealing to me. It was a perfect emblem of the pure sleaziness and overall decadent atmosphere of the 70's smut prevalent at this time. Like all grindhouse films, it appeals to the baser senses - filled with excess violence (grizzly and well-done) and sex. And it's shot amazingly well for such a poor film. I expected it to be grainy and imperceptible.
There's an element of immorality felt when watching films like this, but it's a healthy outlet to sublimate impure thoughts. It's sensationalist, yes. Probably no artistic merit either. But it's an appetizer of the 70's Perversia. I do think it's mostly meant to be titillating and gross for the sake of being gross. It's so blatantly in-your-face tasteless and bad that I love it. Stay away from it if you don't have a knack for the depraved.