On the whole enjoyable history of the first ten years of hip-hop. Hearing directly from all of the principals was great, it is easy to forget how young everyone was when this was popping off in the 70's. The focus on the soundsystem culture as the foundation and it's ultimate demise at the hands of it's own success in records and disco clubs in Manhattan was very interesting.
I think Piskor's Hip Hop Family Tree graphic novels are actually a more accessible and fun way to read these same histories, but the written word gives more depth and breadth than you can squeeze in a graphic novel format.
Last thing, I would have bumped it up to four stars, except for the really distracting formatting of the book. It has too many pages with hella small typography and too similar coloration of the prose and background page color; it makes for frustrating reading in less than perfect daylight. The pictures are wonderful, the captioning is illegible. The publisher f'd this up for everyone; authors get a pass.