The book is enriched with insightful, quick and easy methods. Best suited for those in a hurry to arrive at solutions. Author shares candid suggestions and mistakes students often do. Proofs for some methods could be made more elaborate in subsequent editions.
Good book to prepare from. Loads of questions to practice from. In few of the sections, the higher difficulty level questions are less & a few of the questions & options do not match but their percentage is trivial.