Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An underrated joy!

Vonneguts 'The Sirens of Titan' is an underrated masterpiece in his extensive catalog of material. More frolicking than his later works, this book takes the reader across the solar system in a delightful foray into parody and satire. Unlike his sometimes obvious - dare I say heavyhanded - novels that came later, Sirens remains fairly subtle and always witty throughout.A *MUST READ* for Vonnegut fans, or just casual readers looking for something to dig their teeth into. Certainly one of Vonneguts three best.