To be honest, I'm not getting much from the first paragraph or page. I feel it is a very rash judgment which has a good chance to be flawed (unless the writer is absolutely terrible). You can tell some things from the first chapter at less, and even then, depending on the book, its style, setting, size etc. those things may or may not be indicative of the book. As such, unless something is blatantly obvious I prefer not to assume things from the first few pages.
As for the twisted characters Uralya asked about, I cannot say they fit some specific role in literature except, well, making a difference. I personally like these characters a lot, since if they are well-made they provide for a unique experience. However, overusing or misusing them is more harmful for them than for the typical characters, as a different view of things needs to be properly expressed to have a chance to be tolerable (let alone liked).