I'm not really sure what to rate this. I don't really have anything else to compare it to. I've never read anything with Sirens before... I kinda enjoyed it, but found the plot development lacking. What made this good for me was Gemma and Harper's relationship and Daniel and Harper's ongoing flirtation. i'd give it a 2 or 3... but I'll give it a 3 for the things that I really liked about the novel. Hopefully the sequel will be more developed and complex.