I used it for a rushed 1st year dynamics course, and found the book utterly useless. The concepts are scattered and are introduced using complicated mathematics, some of which is beyond 1st year level. Even simply trying to read through the verbal explanations is near impossible for beginner students, simply because of the depth of knowledge required to do so.
The problems, while plentiful, are simply too difficult. Original thinking is one thing, these problems require something else entirely. I realise, of course, that textbooks must be challenging in order to maintain academic standards, but this book goes too far, to the point where students end up discouraged from the subject simply because the concepts are so difficult.
While I maintain the greatest respect for Mr Beer, as I am sure that he is a brilliant engineer (his book is testament to that), the text is simply too in-depth. For future editions, I recommend that he go through the book and greatly simplify both the language and the problems.
Until this book is simplified, I recommend the Hibbler Dyanmucs text to any other students out there.
However that does not mean that the book is not good. At times you will be flabbergasted at how well the authors can push a difficult concept through. The section on 'Dynamics' was perhaps one of the best in contemporary entry-level texts on the subject.