Opinions on 'Three Cups of Tea'?

Has anyone read Three Cups of Tea? I just finished reading it, and enjoyed it. I'd like to hear other readers' opinions.

I've not read it yet but have been interested in it. Can anyone tell me more about it?

It's an inspirational account of about 10 years in the author's life when he built numerous schools for kids in a Taliban controlled Afghanistan. Quite an accomplishment for a white American. His schools cost only $12,000 each so it doesn't take a lot of money to change the world. I loved it.