I just finished the Bee Thousand one and I really enjoyed it. The only thing I was not crazy about was the "Ode To Dayton" but the bandmembers' memories of the sessions were fun, and the analysis was interesting. I actually really enjoyed the section where the collage artist related his artwork to GBV's music.
The only other one I've read is The Notorious Byrd Brothers which was a little underwhelming. There was a fair amount about the author's relationship with the album and The Byrds in general, which I really didn't care about at all.