I find it humorously ironic that the consumer reviews section highlights one of the main subtexts of this well crafted show. A lot of sensationalist polarised opinions based on political allegiance rather than acknowledgement of a well written script and some standout performances. I agree that the characters are a bit 2D but the show needs to form a base from which to develop. I hope the BBC comissioners give this show the future it deserves as there's a lot of interesting and engaging stuff here.