Hahaha, well music is very personal.
Seamus Heaney, the Nobel Prize-winning poet, praised Eminems lyrical prowess.
It's just a lot more complex than typical rap in how it works (or, doesn't work haha, I respect your opinion!) together. Like 'Attacks' and 'Xanax' don't rhyme, but its something to do with the keys of the words or something and also how he uses them. I'm over my head, I've read about it in the past.. so I'll stop now...
Also I'm pretty sure this is just the intro to album leaked.