I enjoyed the story without falling deeply in love. Enough went well though, I believe readers who say the series gets better and better. I just probably won't stick around. I read too slowly and too widely. I haven't even read the second Hyperion novel ( The Fall of Hyperion ) and I gave the first one 5 stars. 
 However, you want to know if you'll like/love Darkfever. If you prefer YA NA urban fantasy to fantasy fantasy, you just may. It was fun to rock with a girl from the US South in Dublin, to experience her initiation into a twisted reality that includes Fae. MacKayla Lane, our first person narrator, is not ambitious and is not my kind of girl, but I liked her insistence on wearing pink and occasionally ranting about her small town and perfect family that she missed. 
 She goes to Dublin after her sister is murdered there but discovers there is more to it than a brain squirming like a toad. Fantasy readers, I believe, will be disappointed by the world building and the Fae. I was amused by the hunky good/baddie Barrons, who helps MacKayla out because it helps him out, but I am appalled that anyone would fantasize about him, you odd odd dames. 
 Those readers who didn't like the story, probably did not like MacKayla. Or they may have been slammed by some of the writing. Karen does flashforward at times, which may undercut things a little too often. Also, MacKayla seems to defer to Barrons throughout the whole middle of the story without having much of a goal of her own, though she should have one because of her sister's death. The story does prove that you can have a bestseller while ignoring or not being aware of a lot of writing advice, especially if you've got another strength or two. Here I think that strength for a lot of readers was MacKayla, her voice, and/or the author's.