Honestly, I don't care about the premise, just how well it's executed.
The thing that caught my attention immediately is that it's a German production, and the story is supposed to be happening in America. Or, at least, that is how it seems at the moment. I am enjoying all the ways they're getting it wrong. It sounds like a bad thing, trust me, it's not.
The other thing that just jumps out at you, is the 70s. The main character rides a 70s bike boom bike to school. The camera then cuts to an elderly lady adjusting a stereo receiver that looks like it's from the 70s. The small town has a nuclear power plant, which (at least to me) just about screams 70s. I've watched about ten minutes ( I wanted to set this down so I could look at it later); and the show is about time travel, so I wonder if they're trying to set a mood.
In any case, Netflix makes a lot of bad shows, they buy a lot of bad shows, because they're cheap. But, occasionally, you get a good one, and I am hoping this will be one of those.