Buf. I finished this yesterday at 2am, and the fact that reading this was the only thing i did for the previous 30-something hours (also included: sleeping, getting sick several times in a 3-hour bus ride, eating) tells you something--just as it did with any of the other books of the series. 
 She's brilliant in building the mystery and immersing the characters so deep into it they can't no longer see straight, or I can't see straight. I like that the mystery's got some surprises but that it all fits, no deux ex machina crap needed. I loved the characters and how their reactions and decisions are so important to what happens, but also so well-constructed. Conway got on my nerves sometimes, so distrustful she did sound a bit emo (not my words), but I still enjoyed her as a narrator a lot (all of hers "and this is where if i were a normal person i would hug him", not her words) and enjoyed seing her evolve. Her friendship with Moran is the best, and I'm so happy they ended bff (as opposed to stranged forever--never will I be over Into the Woods). 
 Still, I read the 5th of the series first, and before this one came out, I read the 3 first ones. I have only Broken Harbour left (and will read it in a few months, so I don't have to wait that long for the 7th Dublin Murder Squad) and none has wrecked me so much as the first 2 ones did, I don't know if I should be glad about this (the nightmares I had), or if maybe I've just gotten used to her style and dark atmosphere and now it takes more to get to me. But.