I am flying out to Kuala Lumpur next week, and am very glad for this book. Although 'pocket' guide might not be a fitting description, it's still small enough to carry around with you comfortably.
It's full of colour pictures and little maps, as well as the big pull out map at the back. The 14 itineraries are very useful, although I feel that I will be picking and choosing the places I want to go from them, rather than following them religiously (as I'm only going for 3 days, on the way back from Borneo). The book also has information on where to eat, listing restaurants by cuisine and price, and it even has a little section on useful phrases in the Malay language. There are a couple of pages about the history and culture of KL.
Overall, I was very impressed with this guide (so impressed in fact, that I've ordered the Sabah one aswell, for my time in Borneo), and am glad I bought it so that I can start planning the places I want to go in KL, and how to get to them :)