Stranger Things season 2 (with spoilers)
Unlike other shows, Stranger Things tried the same in the new season, following the formula that succeded before. There are just a couple of new things, and the season also has a cliffhanger, as season 1, but a minor one.
There is no doubt that the characters developement is the strongest point of ST. Great part of them are complex and well writed, but there are exceptions. Like season 1, the screenplay used a character's death only to develope other characters, what is a bad point. Put someone just to die in a story is a terrible screenplay decision, and it is even worse when you don't kill any of the mainly characters and just this new/less important one. It demonstrates a fear to kill those loved by the audience, and a TV show must have courage to do so.
Another low point of the season was Eleven's special episode, when she finds her sister. It's good, but it could be greatest if they had explored more the characters, more than just a revenge talk.
Indeed ST has potencial, always had, but a thing is in lack for the producers: courage. Courage to try new things, courage to change a little, courage to kill and explore. But, this is my opinion, and I'm not and specialist, if you don't agree just ignore.