well i kno a lotta that bay shit is true, and i wouldnt be surprised about the other shit. most of it is just: these rappers aren't nearly what they say they are (that's most of it already), beef, blackmail, fights, chain snatching, ghost writing/producing
all of that shit is expected.
there are some interesting things on it though. "rakim did the DJing on Paid in Full", things like that