I've been waiting for it for ages, and just got my copy last week.
I've just started reading it, & it starts off kind of flowery (for my tastes), but I'm just getting to the more practical section, and its becoming just as interesting as I was hoping.
I remember hearing an interview with the author on Radio 4, and his CV is very impressive, I'm sure its going to be a great book once i get into the nitty gritty.
I'd have done one of his courses by now if I lived closer to him, his close range observations wrt navagation tie in very closely to tracking skills, so I'm loving it already