Although many people would disagree with me, I would put this as Metallica's best album. The band is without the talented Cliff Burton, but everything else about this album is just so perfect to my ears. The tracks are a bit more on the complex side as compared to Master and I feel this is the height of complexity that Metallica reached, at least as far as odd meter and things go, and this is why I believe this to be their best work. It has slow more laid back moments (One,parts of To Live is To Die, and the title track), tracks that focus more on melody and slower riffing, (To Live is to Die again, Harvester of Sorrow, And Justice), and tracks that are more thrashy (Blackened and Dyers Eve). All in all I feel this album has Metallica's best riffs and songwriting. You must hear it!