For a short visit to Vienna this book is good. I was in Vienna for work purposes and snatching time where I could to sightsee. This book provided clear guidance as to what were the most significant things to see, and allowed me to use my time well. As far as I was concerned the suggestions were good. It comes with an array of maps of different scales, which were very helpful.
It is a bit light on historical detail or other background information, so for a more intensive exploration of the city it might fall a bit short.