It's a good book - funny clever & incisive. Another good book is:
http://www.amazon.com/Misery-Christianity-Pelican-Joachim-Kahl/dp/0140213244
Sometimes it just takes the right person to say 'It's a complete crock...' and then you realise that it is a crock, and always will be, so then you chuck it all away and move on. Not just knowing the facts, but being emotionally able to come to a decision - that's where the anger of these 2 authors