S2>S1>S3 The give the overall show an 8/10. It starts slow and tries too much with its stakes but there is an ending and it´s about what you would think.
I recommend
Crime Scene Cleaner,
Deutschland 83/86 (soon 89), the very short
Generation War and
How to Sell Drugs Online (Fast) if you want to see the few other good German shows from the last decade. I conder giving Babylon Berlin a few more eps. But these have nothing to do with Dark yet one German show is a bit like it.
7h 59m
www.imdb.com
Aka German Twin Peaks. The David Lynch directed stuff that is. It was
way too good/"mature" for being produced by the national station and released before the digital revolution so it flopped hard. A typical case of only critics watching it and no one reads TV critics. I myself only show the show 2 years ago. Thx Imdb. The lack of a real ending sucks but fans of Dark and the darker end of Twin Peaks will love it. Have fun with subtitles with some of these but preferably all of these.
Edit: The best European show not from England is the still ongoing Gomorrah. It´s as good as The Sopranos. Watch more foreign productions you all. Reading subs never hurt a soul.