Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not so great

Rather surprised at all the golden reviews - what's so good about it? There's only one main character, which is usually boring in itself, and Mara's as uninteresting as they come, while the rest of the characters are 2D in the extreme. There's not enough magic to be interesting, yet the whole thing is if anything TOO implausable. It bears more relation to one of my Gran's Catherine Cookson novels than Rift or Serpent War. Is co-authorship ever a good idea?