The author posts here now and them, he'll have thoughts :-)
Silman has a review: http://www.jeremysilman.com/book_reviews_js/Zuke_Em_Colle_Zukertort.html
Here's another:
http://www.chessville.com/reviews/ZukeEm.htm
I haven't read it but I suspect it's a pretty cool book.
I've heard alot about the Zukertort and the now popular book on the subject...anybody have any thoughts?