o start with the review, I got asked to review this book as part of a 'Blog Tour' I received an advanced copy of it through the author agent in this respect and from NetGalley.

When I read a nonfiction book I try picture where it would be used at. Christian books are usually a type of self help book or a Christian Education (aka Sunday school) type of book. This book does not meet either of those. While it is scholarly it is not something that would be used in higher education either.
Simply put, it is a encyclopedia of sorts. The author has put together what he thinks are important questions that should be asked and answered by all Christians. I will say the collection of questions are good, the answers brief and understandable and should be a good reference for the average Christian.
There is one 'but' though. Not all Christians believe the same. His theology leans towards the charismatic/Pentecostal teaching. I have no problem with that. I believe much the same way. I have only small difference with what he says but that may be just a matter of semantics. Others who differ strongly with the Pentecostal teachings can get a lot out of the other parts of the book, but that could be a stumbling block to many denominational members.
I think this is a book that should be in every Christian's home as a good reference book when questions about certain things come up. I recommend it to all. It may help non-Christians understand some of what their friends are talking about.