I didn't fall in love with this book, but this is largely due to personal preference to do with style. It's well written (which I can appreciate even if I don't particularly like the style) and the subject matter interesting. Covering a period of time that is already disappearing into the depths of history, there is a lot of interest in here about India, Britain, and a whole way of life that no longer exists. This was of particular interest to me as a younger reader.
The characters are three dimensional and well drawn, and the book is quite engrossing. There isn't a great deal of storyline, but it's one of those books where the fact that nothing much happens doesn't seem to matter.
My problem with the book was with the style. If you like 'stream of consciousness' type writing - long sentences, with rambling thoughts and lots of diversions from the main topic, and not much regard for punctuation, you will like this. There are plenty of incidences of it, though it does not compose the entire story. I personally do not like this, hence my reduced enjoyment of the book. If you like James Joyce or Salman Rushdie, you will probably like this book too. I also found all the jumping around in time a bit confusing.
On the whole, a good read, especially if you like the style, and I can understand why it won the Booker. Definitely a good book to read if you are interested in India, history or colonialism.