Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If you don't like this album....

Then you're an idiot. Other than the Black Album, this is quite possibly the finest example of heavy metal ever recorded. The songs have meaning and substance (although some take longer for you to figure out just what that meaning and substance IS), the band plays extremely well, and above all else, it's just really, really good to crank up way louder than need be.I happen to prefer the faster variety of metal, and that's also something that Master of Puppets delivers in quantity.