Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I feel like I've been suckered

Thanks for sucking me in with three very engaging and interesting books: only in the fourth to ignore more than half of the characters that were the focus of those books!I feel like I've been strung along with multiple new characters that I don't have the energy for, even if they did have more than 1 or 2 chapters to develop, while getting very little meaningful story in return!