I finished this book a few days ago. It took some time since I was reading it on and off.. 
 This is the second novel I read for Gillian Flynn and now I'm more convinced of how brilliant of a writer she is.. I couldn't leave the book for the last few chapters. The characters were all so twisted, only exception might be Lyle.. The books takes a very dark theme from its very start until it gets even darker by the end, the mother's death scene? (oh man!) I had to read this part quickly and try to stop my mind from picturing all that shit and then I couldn't and the image was stuck in my head for days.. 
 Weird thing is you never saw it coming, who the killer is. You kept going from one person to another all through the book until you got to the point of being bored and just gave up on trying to figure it out. When I found who the killer was it was on of these woah! facial expressions because it felt like the author made it so that no one would guess it right.. 
 I don't think I'm very motivated to read Sharp Objects, I feel like it would be similarly themed..