I am curious why do you think it is hard? Hard to sing, hard lyrics, what?
The hook, the energy, the fly rhymes. I blast this thing wherever and it gets me in a particular don't CINECAST! with me mood.
Sam - Kanye and Jay may not be the hardest rhymers of all-time, but this song they come insanely hard. Also, to have that opinion of Kanye, I'm thinking you haven't listened to his verse on New God Flow or Mercy, let alone all of his rhymes on Fantasy or Yeezus. He is extremely underrated at how hard he attacks the track. No, it's not M.O.P., who are the hardest, most thorough rappers you are ever going to hear, but pre-Pablo (and some of Pablo), he always attacked the track.