My only two complaints about this work are in the writing style, which is a bit mechanically rough, and the information included, which is more a matter of taste; everyone is going to have a little bit of a different idea about what should be included in such a work.
The above aside, I thought this work does everything that a work of this type should do. Having read it, a novice would be able to carry out a superficial, though competent, discussion on German philosophy. Also, if one were to never read another book, the individual would have a satisfactory idea of the subject. Finally, this book serves as a well balance introduction that is capable of informing the reader whether he or she would like to read further into the subject or one of its authors. Bowie covers everything from Kant to the Marburg School to Habermas. Having had an undergraduate level knowledge of the material presented, I still took away a few helpful tidbits.
The only case I would not recommend this book is for someone certain that they would like to read more thoroughly into this subject, in which case there are a number of other books that will give more depth. One concern I have, not being a complete novice myself, is as to whether there is a deep enough explication of terminology given, so beware. In any event, this is a nice and quick read for anyone with some idea of the subject.