The authors point out early on that this is a statistics book for scientists, not mathematicians. This is a rare beast -- scientists tend to write books about science, leaving the statistical manuals to be written by, well, non-scientists.
As an example, consider Type I vs. Type II error. This has something to do with alpha, right? On page 110, several specific scenarios are given along with recommendations for values of alpha and how it will affect Type I and Type II errors. That is something I can remember.
The coverage isn't intended to be encyclopedic (no "vodka" test?) and I haven't used the book as a reference yet, but so far I've enjoyed reading it straight through and expect to keep it very close at hand as I design experiments.