I cannot help but love this series.
It is taciturn and bleak - and must have been derived from Scandi-noir. There are some duff episodes, but it continues to redeem itself. Patently, they never film in summer - I cannot imagine that Aberystwyth labours under a perpetual gloom - but like 'The Killing' it always seems brooding and gloomy.
I would like it to be a little more shocking in effect, but suspect it has to be aimed at a mainstream audience so can't tread that path.
It could be more expansive in the intricacies of the plot, and build the relationships of the protagonists - the latter appear to be much the same as episode one regardless of the passage of time.
Whatever, I really, really like it.