I came to the book looking for a refresher on university level statistics (after a 20 year absence). It is different from the other stats books that I had in that the explanations are more geared towards use rather than proving everything from first-principles. As such it met my needs very well.
It's not a basic guide and if you're scared of stats I doubt it is the right choice. If, however, you need more confidence on which approaches to use given the type of problem you face it is excellent.