Red Queen by Victoria Aveyard. I'm trying to read more YA to see what all the fuss is about. Unfortunately I have not been very impressed. Granted, I've been sticking to YA in the fantasy and SF genres, but even the best of these is way poorer than your average SF or fantasy book meant for an adult reader. I'm not talking grammar, because that's a given, but characterization, believability, worldbuilding, plot logic, plot construction, word choice... pretty much EVERYTHING. For this one particular book, the concept is a killer one, and the writing is not bad, if overdone in places with some cliched phrasing. But save for pacing, everything else is just... bad.
Nevertheless, it has something, because I want to see how it ends. But the actual reading is half titillation, half tedium.