I read it this summer. I was really impressed -- Thay always struck me as a simplifier ... and here he wades right into the most complex dharma, especially as the book goes on. It completely altered how I perceived him.
I'm nearly at the end now lol!
It was deep much deeper than any of the other books I've ready so far. I'm hoping to read one of his sutra books next. though I am waiting for my copy of the chanting and ritual book. can't think of the title right now.
Whilst the teaching is very deep, I feel he still manages to make it accesible