I have skimmed over just a couple of his books. The first was "Eye Scream" which is a collection of spoken-word/poetry pieces. Looked OK, but seemed very influenced by rap/hip-hop in its meter. I'm not crazy about that style, so its hard for me to say if its a "good" example of his work. The other was titled something like "Grown Man Cry" and was a more expansive, rambling, beat-influenced collection of works that came about after a friend of his was murdered. Vivid, angry and dark - I wanted to buy it on the spot, but didn't have the $ at the time. So that's about the sum of my knowledge of him. I am curious to read more.
Also, he is currently on tour in the U.S., performing spoken-word.