I think the lyrical style in this song is really interesting. The rhyming patterns are all over the place, phrases are repeated twice in one sentence, etc. I can't really put my finger on it, but the vocalist's style and lyrics seem really unique. I don't listen to a whole lot of rap, so maybe I'm mistaken. Whatever. Moving on.
'Kay, here's my constructive criticism: I think more structure would benefit this song more than anything else. There aren't distinct verses or choruses. In my opinion, this lets the listener's attention drift because of the lack of sudden changes in the song. Small changes instrumentally, different rhythms, etc. would really help keep the listener focussed on the song so that nothing would get taken for granted.
"Wannabe lyrics" is quite the disgusting phrase, in my opinion. No one should write lyrics to appeal to anyone else. If you do, you've missed the mark completely in terms of music's emotional significance. I think the lyrics in this song have immense style. Take away the style, flow, everything musical, however, and the heart is still there, which is the most essential part of a song with a lasting effect on its listeners. The writer of these lyrics is extremely passionate about his music, a feeling which is hard to come across in most popular rap today. Very well done, in my opinion.