Checked this one out of curiosity but looking back it seems pretty in line with my last read, Jennette McCurdy's I'm glad my mom Died. Both are biographies and deal with growing up in a dysfunctional environment and finding your way out of it while dealing with grief and trying your best at self-actualization. 

In that regard, I'd recommend this book.

The prose is just beautiful at points but I wasn't expecting less from a ghostwriter that won a Pulitzer, from what I read. The literary references sprinkled through are wonderful, and the turn of phrases work so well with the most whimsical and stream of thought-ish passages of the book. 

Personally the military section was something of a slow read and I dragged my feet through it (I'm antimilitary) but I recognize how much the experiences and the people met there contributed to his understanding of trauma. I did appreciate the passages describing his work with veterans, though. 

In conclusion, you won't find much here if all you're looking for is an outright denouncement of the British monarchy or an acknowledgement of his privilege, but it's a good read on the topic of grief, trauma and breaking toxic cycles.