Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Very one-sided book

I picked up the book thinking that it would give me an insight into 50s Cuba. However, because it was peppered with too many personal memories (it is a memoir after all), the book gave no insight into life in Cuba.Furthermore, the memoir turned out to be a vitriolic diatribe against Castro with words such as 'pig-headed', 'buffoon', and 'b******' used liberally by the author. The book is written in pretty simple (badly written?) English with unimaginative prose.The only interesting part of the book deals with how Mr. Rodriguez picks up his life after coming to the US as a penniless migrant.