His raps are just missing context and flows. He is all over the place, lyric and flow-wise. I mean, changing your flow is cool, but it doesn't even sound like a flow, it's like he just spits something at random pace sometimes.
I admit there was a couple of good lines in Rap God, but there was more wack metaphors and weird fast-flow saying all kinds of stupid shit. And I still don't like the way he delivers his music at all.