It's not bad or anything, just not particularly useful for anyone that doesn't do data analysis (with interviews, questionnaires, number crunching, etc.) or STEM subjects. There are useful tips one can use for historical and other humanities approaches but generally speaking, this is rather one sided and I feel like I can't use most of the tips and instructions as they don't apply to my research. I had to break down every tip to its barest bones to be able to apply it to my work. However, it did give me a good template for my own proposal structure to stay focused and the writing style is easily understandable with lots of examples.
I guess the actual benefit of the book depends on what kind of research you do and if you do quantitative data analysis and not historical research, then this is certainly for you.
Writing a dissertation is a daunting task. This book did a great job of helping me to begin to tackle the task of writing my proposal. I found it especially helpful that the author addresses quantitative, qualitative, and mixed methods studies separately.