As a general business book I give it 5 stars. For practising business skills it is great and it gets students doing "daunting" tasks like writing formal correspondence and doing presentations right from the beginning. However as a exam preparation book what it lacks in my opinion (hence the 4 stars, I hope the publishers read this) is a contents and overview table about the actual exam: eg timings and breakdown of papers; content of questions and information about what is expected of students. With exam books, strategy is everything.