I don’t know how much of what he translated from the Sumerian tablets has been translated properly, or was true to the word, but this book certainly lends some provoking possibilities to our history. The style is of ancient epic poetry and has some odd sentence structuring, but I chalk that up to being the language of the Anunnaki.
The mythology is fascinating and makes a lot of sense, theoretically, when filling in the gaps leftover by religion.
I know Sitchin has his detractors, as one would expect from someone who is basically challenging a safe and globally accepted belief system, but from where I sit, I don’t see where he lacks credentials anymore than the sources of those other religions.
Whether you believe or not, it’s an interesting book to read.