I've admired Chris Welch's ability to get close to bands and thus obtain first-hand the opinions of members. From that respect this book doesn't disappoint. Indeed it is interesting to see how members' opinions and impressions of the various stages of Yes's roller-coaster history change over time. Indeed even the author's own views are not consistant over the 35 plus years the book covers.
It is clear that this book is compiled from an extensive number of articles Chris Welch has written and interviews he has given over time. However when I read a biography I expect it to read as one work. This doesn't. But neither is it presented as simply a collection of articles written by the author. Instead it appears to be a not very successful attempt to gather the articles into some sort of chronological order and turn it into a bio, without going to the extent of actually writing a bio.
Consequently there is quite a bit of skipping back and forth in time, it is not always obvious without careful reading of the text who is being quoted, and many incidents/stories are repeated (and not always from a different person's perspective).
I would describe this book as the research, gathered together in some sort of order, in preparation for writing the first draft of the biography proper. Perhaps this is because Chris Welch is a journalist rather than an author.
Don't get me wrong, it's well researched, informative, occasionally fascinating and rarely leaves one with a sense of having glossed over incidents. It offers a good insight into the band members' as well as their associates' (managers', techies', roadies' etc) feelings towards the music, the management and each other at different times. It also feels like the articles are written with a real love for the band and it's music yet Chris Welch manages to remain objective and critical about both throughout.
The target audience of Yes fans will not be disappointed in the content, but I suspect many, like me, will be rather disappointed in the presentation.