This came into work today, and I thought I'd give it a read, as though I'm not a huge rugby fan, I do have a soft spot for the All Blacks.
The problem with the book is that it only focuses on the first couple of years which, though important (the difficulty they had to begin with was quite something. blasted union!), was also terrifically dull. It was also not helped by the writing, which was not particularly good.
Not what I was hoping for, but if you're a rugby history buff, you may want to give it a read, as it's very informative on the early years.