Read it during lunch.
Mostly, I agree with him, but he is too much fundamentalist about the badness of religion - he is engaging in some of the bad behavior that he accuses religious people of following. I think he also has a very closed mind about religion.
But, other than those quibbles, he does very forcefully and rightfully point out the dangers of religion - especially American conservative "Christianity" (ironic quotes are mine) and to a lesser extent Islam - and offers some very good and compelling and correctly damning critiques of religion and how it gets expressed through violence, hatred, and ignorance. He has a wonderful section on "Creationism" and "Intelligent Design" (quote are mine here, as well) - really sticks it to the backwards fucks.
It's worth reading, for the religious and the non-religious both, for some good insights and good ammo to use against the fundy shitbags.
Not quite worth the $16.95 cover price (thankfully I only spent $11 or so off Amazon), though.
(I've also posted this over at the Christian forum for a more lengthy discussion, if you care to do so
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=291x4077)