Of the 18 authors in this book, how many are women? None. Not a single one. And how many are not white? Again, the bias in this selection is clear. I am going to take an educated guess that the editors, both male, are also white. I don't like how the "horror hall of fame" is a showcase of only white male authors. The implication behind its claim (as written on the book jacket) to be "the premier collection of the finest horror stories of the modern era" is that no women or non-white authors were good enough to make the top 20. Absolutely not true and very insulting to imply.
The specific stories in this collection are solid. Mostly, they are great. The fact that this selection is prejudiced against diversity does not diminish the fact that Algernon Blackwood's "The Willows" remains my favorite horror story, and Arthur Machen, Edgar Allen Poe, and Ambrose Bierce, etc. are still great authors. My rating is based on the overall quality of the stories themselves. This book gets five stars for what is in it, but it should not be marketed as what it is, the title ought to be "The White Male Writers' Horror Hall of Fame."
As a final note, Stephen King's "The Reach" was the weakest story of them all. No sense of horror whatsoever, nothing remotely creepy, and the end was given away at the start: no point in even reading it.