I found this book very generic. I was actually rolling my eyes at the bland plot and stereotypical mystery characters. At the end of the book I don't think there was a single character I cared about or had found interesting. The writing was just as simplistic as the plot. A late elementary-school aged child wouldn't have any trouble with reading it due to the lack of any complex words and basic, repetitive sentence structure. The dialogue was badly stilted, and I winced my way through a number of conversations. The author doesn't seem to realize that the reader might be able to use context to figure out the most basic things, and wastes a lot of time explaining things that didn't need such an elaborate explanation.
This book is fine if you have some time to waste or need a book where one only has to use minimal brainpower to follow what's happening, but otherwise you may find it frustrating.