Well there are many rap classics like everyone has certainly noticed and I'm not the Premo and Guru are the Gods of Hip Hop, but this is not much missing. The beats and Guru's flow may not fully developed yet as to "today's" Gang Starr be times, however, with "It Takes A Nation Of Millions" of PE can be made equal. And it is from me personally.
It's just one of the most influential albums of rap music, a pity that these times are over ....
More can not be said simply.