Contrary to the other two reviews that existed when I wrote this, I found this book to be just what I needed. I have years of experience with every version of Excel, but only at a modest level. Because I do my work in SQL Server, I never needed any of the more obscure (to me) Excel features, until now. This book answered several of the how-to questions I had with its examples.
I have to agree with the reviewer who wanted more depth. While this book has met my immediate needs, it is clear that it is going to leave me wanting more, very soon. I will certainly have to buy a more advanced book, but I would not have been happy with a very advanced book before I used this one.
My advice is to take a look at the sample pages on Amazon and only buy the book if it addresses your specific issues.