This is Classic Metal. However, their previous full length, Ride the Lightning is overall superior. For those whom are mainly interested in lead guitar, Hammett's lead playing on Ride the Lightning is far more emotional and overall exciting than on this. Master of Puppets is mainly Hetfield's showcase, as his down picking riffs are some of the most outstanding examples of imaginative, innovative rythm playing in any genre.
For me, Master of Puppets was sadly the last Metallica album to astound, their output just got progressively worse after. The follow up to Master of Puppets, which was ...And Justice For All, was a major disappointment for me. It just seemed on that album that they had completely exhausted the style for the time, and needed to take a break from touring. Now, look what they are.Awful.