This is listed as a YA novel, and it works as one if you don't mind your Young Adult reading about the perils of drug abuse, and well drug abuse period. This book is all about drug abuse and how once addicted to a drug it's hard to rid yourself of that needy feeling of addiction. While it might scare some off of trying drugs (at least one young woman dies from the abuse) it also goes into detail the euphoria some feel when taking drugs.
The book is an easy read, I read it in a few hours, and if your teen is a fast reader it won't take them long to get through this book. Faye is an hard character to like or get interested in, her history is developed enough that the reader knows why she is addicted to Heam and why it really wasn't her fault, but there are relationships in the story that aren't really explained. For example when a person gets addicted to Heam the family of that person just disowns them and refuses to talk or acknowledge them, but why this happens is never explained.
When Faye meets Chael the story takes a turn and the reader hopes that finally she will be able to move on and start a real life, but then humans being humans, bad things happen and Faye suffers consequences. She doesn't really care if she lives or dies, and she knows that once she gets her revenge she may die and she is fine with that.
In the end, I personally, didn't find the book to be complete. With everything that happens, all the drama and tension and struggle that Faye goes through, to have the book end so simply didn't work for me. I understand the authors need to bring things to a close, but the last few chapters seemed almost thrown together and they didn't flow as well as the rest of the story. If felt rushed, like the author needed to finish the book and wasn't sure what to say.