As others have mentioned, China is a sprawling country that will transport you to 1421, 1890, 1850 or 2005 depending on where you or what your interests are. There is really no way any one guide book could satisfy everyone.
Here is what the Lonely Planet-China manages to deliver and why you'd want to buy this book: An over-view of nearly every city you might be able/want to visit. The brief history and signifigance of each city and its main sights are mostly accurate. Within each city, there are a range of hotels, transportation and resturants. Depending on the size of the city, that can range from from a few paragraphs to several dozen pages.
After most cities pages, there is a page with English & Chinese words/characters so you can point to them for your cab driver or if you have any questions at the hotel. They are in tiny print so hopefully, no one needs glasses to read them.
There are also Chinese phrases (along with English) of the most important things you might need to ask or say.
If you are planning on traversing on your own or if you speak Chinese adequately, this is a decent starter book as to what you might want to go or see in a particular city.
If you're on a tight guided trip - this might be adequate enough for you to get a sense of where you are in the city in respective to everything else.
If you have relatives in China or you're traveling with a Chinese speaker and your trip is short, this book offers you enough of an over-view of most things.
Why this book might not be for you?
Just think of any large American or European city near you with hundreds or thousands (well, not really in the US) of years of history - can you describe all there is to do, see, eat, etc in several pages adequately? Rome? New York? Etc? Not really. That's the main problem with Lonely Planet-China. It's really an all too brief over-view.
If you're with a guided tour group and you are a really detailed person, you'll want to get the city specific books (Lonely Planet or otherwise) of each particular city to learn the history of what you're seeing and what else you might want to do your few hours away every few days.
First, in the major cities, China is literally changing overnight. There are 4,000 skyscrapers in Shanghai and 1,000 going up in the next YEAR. Most all of the information pertaining to lodging & restaurants are changing EVERYDAY. But going to China as a non-Chinese speaker is not necessarily easy. If you're willing to pay typical major US city hotel rates, there are dozens of choices in Beijing and Shanghai not listed here - most which will pick you up in a limo from the airport - a very necessary arrangement for non Chinese speakers. There are car rental agencies now but unless you are a cab driver in Manhatten and you can negotiate your way in Chinese out of any fender benders, do NOT even consider driving in China.
The other problem with the guidebook is that you definitely need to sit down and map things out way in advanced. For instance, there is a descripotion of a sight, you need to find the key to that city - then look at the monochome map - find the number to see exactly where it is. They also are not very clear about how far each sight to each other. The maps are not huge so what seems like 3 inches might really be way, way out of town. It would also be nice if they were clearer in exactly what you absolutely need to see and why in comparison to another temple ... for instance, each publically accessible section of the Great Wall also offers you different things.
And of course, the food. If you love food, China is the mother mecca of food - it's extremely inexpensive unless you just eat at the tourist spots of course, personally I have had a filling breakfast for $.25 USD and massive banquets for less than $8 USD a person. From the street to 6-story restaurants, there is no way any guide can keep up but also what's disappointing is that most foods are very regionalized in China and that is NOT really mentioned in this guidebook - if you are really traveling around to different parts of China - there are definitely dishes and delicacies that are sometimes ONLY available in that city or region and if you want to eat it, sometimes by the next train stop, it's NO longer available (many if not all sit down restaurants have picture menus but I don't think that's pointed out also).
BTW, many major historical sites and in particular Beijing historical sites are undergoing renovation for the Olympics and beyond so be prepared to see scaffolding.
If you have any other questions, please feel free to email us.
Overall - a decent book with a decent over-view of most of the cities in China. The real problem is a printed book cannot hope to cover the thousand years of history, the overnight changes going on right now as we speak and of course, the thousands of food choices.
Enjoy your trip!