I have it. I liked it. I didn't think it was hugely groundbreaking in any obvious way -- if you've been keeping up with advances in canine cognition research then a lot of it's going to overlap with what other writers (John Bradshaw's the one who leaps to mind instantly, but of course there are others) have been putting out in the last few years.
But it's a good book, well written, easy to read, IMO a worthwhile addition to a growing body of literature on the topic.
ARCHMX TDCH Pongu the Insane, CD-C, RE, RL1X6, RL2X5, RL3X2 (GSD mix, b. Apr 2010)
Crookytail the Tigerwuff, RL1, ITD (Akita mix, b. Jan 2011)