I'm working my way through the show after having just finished the first book. I found the crew of the Rocinante to be fairly generic characters in the book, but at least they were likeable. In the screen adaptation, I find the constant conflict among the crew a little grating at times – Amos and Holden aren't particularly likeable. Miller seems like a much more interesting character, and I think he is played well in the series (I will have to look up the actor who plays his part...).
The dialogue seems quite hard to understand – it falls victim to the typical mumbled, gravely voices that seem to be present in many American shows and films.