Started watching on Monday and going to settle down tonight to watch the last 3 episodes. Absolutely phenomenal television!
I think the comparisons to Stranger Things are a little off. Aside form the missing kids and the disconnected, small town aesthetic there's very little correlation between the two.
I think a more apt comparison is Twin Peaks. An emphasis on the more distasteful aspects of human relationships to help drive the tone. A central mystery that has hugely compelling and bizarre layers. A multi faceted set of characters that all play an important part in telling the story. The only real difference is the tone. Where early Twin Peaks has that fantastic juxtapose between the eccentric and the sinister, DARK is just... well, dark. I think that has ultimately put a few people off because they think it 'lacks compelling characters'. But not everything needs a hero, you know?
Also if you're thinking about watching it, just put English subs on. The dubbing is HORRENDOUS and does a massive disservice the great acting.
ALSO, those first 2 episodes genuinely gave me the fear. I was genuinely too scared to get up and grab a glass of water! It's the score + cinematography combination I think, both utterly compelling.