I really enjoy personal experiences and what makes people tick. After COC and other books covering doctrine, I'm good on all that. JWs are throwing darts at the wall and don't know anything... got it.
But stories from individuals.. their thoughts, feelings, insights, experiences, like that. Probably why xJW books are most appreciated by other xJWs.
I let a UU friend borrow CoC. A chapter or two into it she couldn't follow it and gave it back.
Some things you go through only others from the same war can understand.