A few stories are really interesting and entertaining (I really enjoyed Polaris); most of them really reminded me of Poe's stories, without adding anything new.
I cannot understand how all the characters are basically the same, same studies, same way of thinking, same way of reacting... there is no difference between them.
And the only emotions they feel are fear and curiosity. They may loose their family, their friends, and they are never grieving. Never anything more than terrified or intrigued. There's no depth in them.
And more important: the notes! Ok, this is not Lovecraft's fault, but the notes are terrible: they should be avoided because they really interrupt the reading, and going back and forth between the pages is really annoying, but I can understand them if they are necessary. But most of the notes in Joshi's edition are useless, with uninteresting trivia information that everyone would have been better without (Saying that a character got his name from Lovecraft's uncle doesn't add anything to the story)