The choice of actors and the uniqueness expressed in each character was really good.
The actors did a great job, especially the two main ones, in pertaining their characters.

HOWEVER, much of the story was sub-par, and just didn't flow.
In my opinion, the first 8 episodes were amazing, but then is started to fall short.
The villainous characters started to seem rushed and there was little to hold on to before something new (not necessarily needed or surprising) was thrown at you.
No only that, but the two main characters themselves started to have less and less one on one debate/conversations about their differentiating opinions on how to proceed or what was going on.
Instead of it being two character that both clash and work well together because of it, it became a pair were one always talks and the other listens (except short anecdotes) and follows like a dog.