A fairly standard YA fantasy novel. 
 Alina is part of the beleaguered army of Ravka. Ravka is surrounded by enemies on all sides and itself bisected by "The Fold" a stretch of land cloaked in darkness and home to monsters. Enter the plot: While crossing the Fold she discovers that she has special powers that will change her life forever. Now suddenly plain/ unassuming/ inexperienced/ vulnerable Alina is the centre of attention. Add a makeover, a love-triangle and a "plot-twist" and you get Shadow and Bones. 
 In all a standard YA novel that is a quick read, has an interesting world and the potential to be very interesting, but.... not yet. 
 Next novel... probably 
 Anyway 2 stars for the mediocre plot and 4 stars for the potential of the world.