My church went through that book, and I can't imagine what the beef is. Saddleback and Pastor Warren have done an amazing job focusing on new seekers, but the book is great for more mature Christians as well.
Oh I agree. I have seen many people's lives touched by that book (my own included), and as I've attended Saddleback, it's set me free from a lot of the "religious" false doctrines that I see so many people on here with.
But if you listen to some people on here, they'd try to convince you that Rick Warren is a false prophet, Saddleback is the den of iniquity, and the PDL is from satan.
Just so you're ready...