I recently completed a BSc and used this book to gain a basic understanding of alternative research methods than what I was using in order to justify fully my method of choice.
It was recommended by my supervisor and I can see why as Carla Willig writes in an interesting and informative manner, providing examples of student research projects that have used the various methods, allowing the reader to gain a true understanding of whether certain qualitative methods are more suitable than others.
As someone who is fairly passionate about qualitative research due to it's person-centred focus, rather than merely statistical, this book was essential, and was a useful reference for my research project.