Season 1 was a shock for me, it was like the 1st matrix movie, briliant and unexpected. I rated it best TV show of 2016, before Game of Thrones or Westworld, and I stick to my choice even now. However, season 2 and 3 were ...well, like Matrix 2 and 3, more, but ultimately less, ...a lot less. Humans, in general, seem to work on two things: something, and money. With Stranger Things the feeling is that for the 1st season they were really doing something, while for the latter they were just making money.