I haven't read the book but I am extremely compelled to watching the whole season in 1 go. I do understand though the remarks of the critics that this is a DAD show because it definitely is. I am assuming that everyone should expect that the book is for mature audience especially those who like action/war theme and not for the general audience since the author himself is a retired man in uniform. I like the whole adaptation of this series from the book especially the physicality of it.
The only thing that somewhat I didn't like are the scenes where the dramatic/intense moments with constance wu is just a little bit too much for me. Nevertheless, I expect season 2 for this series "True Believer" to come soon.