I found this book an interesting read, but not terribly useful. I am a solitary witch and all of the rituals were designed for a coven, particularly a Wiccan coven as the rituals are in accordance with the Sabbats. They are definitely NOT "simple" or for "every day" use!
Now, if you happen to be in a Wiccan coven and would like to incorporate Egyptian gods and magic into your next Sabbat ritual, then this book is perfect! Keep in mind that the rituals themselves are not exactly authentic, though. Celebration dates and other small details are different (the Egyptians placed the Birth of Horus in the middle of summer, but Almond places it at Yule), but these changes were made in order to make them more user/Wiccan-friendly.
If you are a solitary witch, then the only real value I can see are the numerous hymns listed in each ritual. As far as I can tell, they consists entirely of authentic text taken from the Pyramid texts, Coffin texts, and Book of the Dead.