This is a pretty good book. I used it to teach myself some intro grad level mechanics and thought that it was concise, has some interesting problems to solve, and has a nice set of chapters on fluids - in particular emphasizing waves in fluids - which was the primary selling point for me. I never did work through the chapter on Hamiltonian mechanics (I know - that is what most people are probably wanting to read first!). The chapters I have read tend to have sections that introduce applied mathematics techniques in a useful way; most techniques I had seen before but still learned something from the discussion. The level is a modest step above Marion and Thornton's classic undergrad book.
I cannot make a useful comparison with other grad mechanics books, since I am not so familiar with them. But if you are looking for a ton of material on Hamiltonian mechanics, this may not be the book for you, since the authors decided to emphasize continuum mechanics instead. For example, Goldstein's book has a ton more on Hamiltonian mechanics and other books likely do too.
I have the old hardback, but I see that it is now a Dover republication and the price makes this book a good deal.
jason