A bit of a confusing start or maybe, a rather slow one as this world required a bit of a setup so it took me some time before I feel comfortable to sit back and enjoyed the read. While I found it an easy & fast read, it reminds me quite a bit of Divergent in the stratified society and a mystery of water dripping from the ceiling. Unfortunately, then my expectation was managed and the ending/twist did not in any way shocked me.

The protagonist, Hayley, wasn't particularly likeable though not super annoying either. At the beginning, I felt she was a bit of an 'unreliable narrator' - the chronic head pains and believing that she may be seeing things that aren't there. As you read on though, this is the role assigned to her by a society that does not appreciate 'anomaly'. She did grow a bit though most of it would probably have to be done in book 2 as she discovered more about the world.