In the interest of fairness, I did not read this book cover to cover. I did skim it in its entirety before going to Paris. I also referred to it often while planning and again while in Paris. Some things I liked, and some I didn't.
On the plus side, the Book of Steves is absolutely correct about the charm and the accessibility of the Rue Cler area. Loved, loved, loved it. His tips on museums are pretty good, too.
On the down side, his walking tours take longer than the time says, unlike those of my good friend, Frommer. I'm not sure I trust Rick on food, either.
As with all guidebooks, the shopping reqs don't take into consideration my budget, but that's a quibble I have with most guidebooks.
In conclusion, see if you can check it out of the library. Also, compare those walking tours with Frommer. Generally, I can shave about 30 minutes off the time of a Frommer walk. Do consider, however, that eating in France is never quick--and that is part of its charm.