Finished this last night. Loved it! They captured the 80's feel brilliantly, both of some classic movies, E.T., Goonies, Poltergeist, etc. and also Stephen King's earlier books. Kids being the protagonists but not a kids movie. I say movie because that's what it felt like, an eight hour movie. Oh, and the music, that was the cherry on the cake. I couldn't even bring myself to forward through the title music!
Although I loved it, I hope they don't do another season. However, with a title like 'Stranger Things', another season wouldn't need to be a continuation of this story. They could be stand alone seasons if the writers have the talent or the ideas for something else. But ultimately, I very much doubt it could live up to this, but hope I'm wrong.
10/10 from me for this.