Oh man, while yes, ive been enjoying the lighter YA stuff lately this one really blew me away. Some didn't care for the setup, but I thought it was some well handled worldbuilding, which leaves Roth free to do some more serious storytelling in the next book. The writing style is simple and direct, as befits a YA novel. The prose is light in descriptives, but the settings are drawn plenty clear enough- I think very few people need to have an urban landscape meticulously described for them these days. The benefit there is that the characters are front-and-center at all times, keeping the tension building smoothly until near the end. I do think it could have been longer, as the transition into the final act of this novel feels a bit abrupt... perhaps a heavy handed editor was at work there? 
 Aside from that this is a worthy entry into the genre and one worth keeping up with as the "Hunger Games" clones fly fast and furious from the tyrants of the "Big Six" publishing houses trying to capitalize on the film's popularity. 
 Personally I'll be waiting on edge till the next volume's release May 1st and hoping it lives up to this auspicious start.