If you love Egypt history, if you are interested in the battle between monotheism and polytheism that shaped the infrastructure and the social customs of ancient Egypt.... well, this book probably isn't for you.
If you are moderately interested in those sort of things in the peripheral, but like a story with a very clear "good guy" and "bad guy" that is loosely based on a few scattered archaeological finds... this book might be just what you want to read!
In short, this book is what I would typically call Lit Fluff... except that it is rather too long for such a designation. It is, however, a relatively quick read for its girth because the writing, while a tad prolific, isn't weighty.
In short, Nefertiti is the story of, you guessed it, Nefertiti as shown through her rival and sister Muty. There is a rise to power, some actions taken because of hubris, karmic retribution, and a whole lot of Muty sighing in frustration as Nefertiti is a horrible person who does horrible short sighted things.
I'm not sure if the characters lack depth because the author is basing them off some very skimpy historical data or if the author was just lacking imagination, but the end result is a forgettable book about what could have been unforgettable characters.
My advice? If you happen to ge the book for free or cheap at a used book store and you have a plane ride in your future, why not. Otherwise, there are more compelling better written books out there.
But that's just me.