Well OK, not lives, but it made a first time visit to Paris in June 2007 even more wonderful than it already was!
We went to Paris as a family group of eight as the last part of a trip that also included Madrid and Barcelona.
This book and its companion edition on Barcelona were extremely helpful and up to date. The beginning overview easily segues into the separate detail maps of different sections of the city. They are large enough to show street level detail in print large enough to be read without reading glasses. They are easily read in dim light, stiff enough to be read in a breeze and small enough to be somewhat covert (that is, it isn't obvious to everyone within a block that you don't know where you are). The metro and train maps at the back are accurate and a real helpful and thoughtful addition to each book.
The entries on attractions, restaurants, shopping, and music were well written, accurate and up to date. We did not encounter listed places that were out of business or at great variance as to price.