Good, compact, and it includes all the relevant information about the main sights.
It also has a removable fold-out map and metro map, which is very handy.
The restaurant, shopping, and bar listings mean that the book dates very quickly.
I wish more time had been spent on information about sights instead of those listings.
However, each section also includes proposed walks which are easy to follow and average a distance of between 3 and 4 km, which is manageable in Paris at a leisurely pace.