It's really, really good, especially if you're interested in the why and not just the "give me the damn test I need to run in SPSS and what number to look at". Plus, because you spend a lot of time coding, it's more fun and less dry than most stats books.
Think Java is also excellent. I think it may have been the first (non R) programming book I read, and it helped me get more into programming which wasn't just for stats.
I have recommended think stats to many people, and it appears to be somewhat of a success. And its free documentation, which is wonderful.
