There is a love triangle going on - not to my taste at all. Although many readers will find it an enhancement, I don't want the curse of teen romance to infect my favourite genre as it did the bitey and lycanthrope books! But this is a personal nit pick and ''Ashes'' is not a romance novel, so don't worry too much.
All in all, ''Ashes'' has a great deal to offer the fan of catastrophe novels. I really enjoyed it. We also have a review of the [[Shadows by Ilsa Bick|sequel]].
I think you might also like [[D4rk Inside by Jeyn Roberts]], an unusual entrant into the dystopian market. It doesn't bother with any worldbuilding, it just goes for the violence and frenzy of a disintegrating society. Its villains are also ''changed'' - and not for the better.