I genuinely don't like this series, but I at least respect it. Its willingness to brutally and suddenly kill off characters, often in undignified ways leaves an impression, and it never shies away from ridiculous or uncomfortable subject matter. It has a total disregard for narrative conventions and as a result is one of the few genuinely unpredictable works I've read.
Almost every work of fiction has at least one thing in common: they want to please the audience. Even horror or tragedy works attempt to provide some sense of catharsis. They are enjoyable, just in a different way. It's entirely possible the author was attempting to create an enjoyable experience and just utterly failed, but I doubt it. I get the distinct impression reading this that it is the exceedingly rare instance of a work that simply has no desire to please the audience. It's almost like punk or noise music that deliberately sounds unpleasant as a sort of challenge or f u to the audience. It's certainly unique among the stories I've read, I'm just not sure it was worth reading.