Not just this book but any. If you have to ask then the answer is no if you are really serious. If you are just a bonus whore or an employee then I sure understand your position. I mean why would you play at a book that you really had to ask this question.
Have you ever seen a topic that started with? Is Olympic, Pinnacle, WSEX, GRANDE, WWTS, Intertops, still okay to play w/ Why would you you need to ask about a book if their are so many good shops available.
Would you ever ask if Wal-Mart will give you the best price. Will you ever ask if Polo sells good quality clothes. Will you ever ask if Microsoft is a good software. You get the point. If you have to ask then you are the one that is looking for the problem.