This would be a great book, as explained in the other review, for anyone with a passion for home cooked Indian food. The recipes are very detailed and well explained. The start of the book gives a very good introduction to how Indian families prepare and cook food at home, and provides an exhaustive account of the ingredients used.
Unfortunately, I have not found any of the recipes particularly exciting, much of them focus on bean and lentil dishes. The majority of recipes require ingredients which you will only get in an Indian supermarket - even then you might struggle. I think the main problem is that there are no photographs of the food so none of the recipes have ever really drawn me in.
If you are trying to re-create that British Indian restaurant taste, this is not the book for you. If you have travelled round India and sampled the food, it's probably worth buying.