On the whole I enjoyed it although it did get a bit samey by the end. That's to be expected when everyone is writing about the same thing. It was more readable than the Apocalypse Reader which I tried earlier. The AR gave a more widespread interpretation to what the Apocalypse might be whereas here it's pretty much the same thing in each story although how people deal with that is different (until they get munched).
I thought the last story had an unsatisfying conclusion and I didn't get on with Vastation by Laird Barron. He says not to read it near the start and I didn't get much further than that (as one reviewer puts it "Vastation, Laird Barron - stream-of-consciousness narrative + Cthulhu = 18 pages of gibberish."). Given Barron's instruction, I didn't feel bad about it.
Most of the stories are not particularly Lovecraftian, perhaps one out of the whole collection. Given that I'm not so much a fan of HPLish prose, I didn't see that as a problem.