I have travelled to India 10 times so far and been using Lonely Planet India guidebooks for 7 years, got my first one in 2004. I was very happy with them and each new edition was getting better and better, basically new places and maps were added, the book was expanding. The last 13th edition (published in Sept 2009) had 250 maps, they were very clear, showing often much more than just the city centre only, LP got it just right. I was very happy seeing a release of the new edition, as I am planning two trips to India very soon. Ordered the new guidebook and.. couldn't believe my eyes. LP changed their excellent maps! They are not as clear as they used to be, I find reading these new maps very hard, they use blue symbols now and road are marked in grey. Also maps are often much smaller, in the previous edition they covered much larger areas of cities. Also some maps are simply GONE, so there are quite a few cities without maps. The front cover of the 13th edition says "250 detailed and easy to use maps", in the new edition it is just written "196 maps" in small letters on the back cover (so 54 maps are gone?). They do not say "detailed and easy to use" anymore - not so proud about the maps this time? If it is not enough then imagine that some cities featured in the 13th edition are just gone, they are not in the book anymore (for example Daman in Gujarat).
What is new? The first 82 pages are in colour, so you get colorful maps of Delhi. There are also perspective plans/sketches of Taj Mahal and Red Fort, like the ones in the DK guides. I like them, but I feel they were added at the expense of the maps and places that got removed from the book. Each state has a different introduction too. And there is a fold-out map of Delhi, Agra and Jaipur. Basically everything is quite different now. We also get 1232 pages vs 1244 pages in the older edition. Also the paper quality is worse and the cover damages easily.
Also there is much less hotels hotels listed and they are not grouped by budget, midrange and top end category but is some other confusing order.
I don't understand why changing a winning formula?
My advice? If you are going to visit more than Delhi and Agra then skip the 14th edition, get yourself the previous one. For my next trip to India I will be using again the 13th edition, the new one stays at home. I hope they get it right in the 15th one, but before bying it I will go to a bookshop and see how it's like. I hope they return to the previous form of maps and add more cities.
To summarize it: I might sound harsh, but I don't like this edition, it is a step back comparing to the previous one (or maybe just step in the wrong direction). 1 star from me, wasted money, as I will not use it for my future trips.
update: LP seems to use this new design for other guidebooks - just got the latest 11th edition of Myanmar guidebook and it is as bad as the new India guide, what a shame...