This is the only book that gives a rigorous and comprehensive treatment with lots of examples, exercises, remarks on this particular level between the standard first undergraduate course and the first graduate course based on measure theory.
There is no competitor to this book.
The book can be used in classrooms as well as for self-study.
Dreadful book. Using this in my second course in probability right now. Poorly organized, hard to read notation, bad examples and explanations of the concepts.
This is just a bad book on the topic. Neither theoretical nor applied, full of mistakes and terrible explanations of even the simplest things. Not recommended.