Mixed feelings. I loved the narrative. I loved (most of) the characters. But the plot itself didn't seem plausible and sometimes I think they went too far to seek revenge. 
 Lillia is undoubtedly my favourite of the main protagonists and she's the sort of girl who I would have fun being friends with. The only problem is that she sucks at confrontation and a whole lot of feelings (and second hand embarrassment) could've been saved if she just freaking talked to her "friends." 
 Kat was a fiery ball of spitfire and I hope we see more of her in the next books. Also, as much as I sympathised with Mary, her character felt flat to me. She had no personality outside of the revenge plot and her bullied past. The only thing that made her stand out was the paranormal aspect towards the end (which kind of pissed me off because I signed up for a contemporary). 
 Regardless of the crazy stunts the girls pulled (which had me questioning their moral high ground) I've become attached to them. I'm almost scared to read the next book where the girls will have to deal with the consequences of what they've done because I'm rooting for them.