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I know it well enough, but I'm not fluent enough to where I'd be able to keep up with like a talk radio broadcast.

Not trying to be an asshole but that might be the reason why you don't really enjoy german rap, if you like listening and understanding lyrics.
Most of the good german rappers only make sense when you understand what they're saying.

Most of them have a good voice and good instrumentals which saves it for those who don't understand german, but eh it's different for everyone

I can understand the music just fine, well, i'll be honest and say I understand about 90% of it. I just don't really care for this guy. I get more into the music than the lyrics to be honest though.

Well then I now look like a fucking dumbass and excuse myself for it.
That's understandable though. I do like the music and the lyrics but everyone has his likings, as said before