Meadow, I think we think about "hype" differently.
1. To me "hype" is the organized effort by the book industry to push a book and sell it, usually with quite a bit of puffery and other exaggeration involved (all the usual lying advertising techniques).
2. On the other hand, an overwhelming number of recommendations from one's friends and acquaintances, I would call the large "word-of-mouth" that goes with a very well-known book (even negatively well known).
And speaking of negative and full of grammatical errors, I think that is a particularly false claim, in the category of rumor, based most likely on the original fanfic version.  My early hardcopy was as nearly free of grammatical errors (two, that I noticed) as any more recent book I have read.  But to say these things, makes me a champion of the book and its subject matter in many people's eyes, when in fact I am mainly a champion of the idea of actually reading the book so one knows what one is talking about.
Karen C:  My advice, read it if you wish.  It may turn out to be quite different than you have heard.  Or not read it, as you wish.
In either event, have a good day.