Okay, so we know this was a good show at one point. I loved season 1, and the second and third one was okay too.
This 4th season was just pure crap.
Story was not so well written, it was cliché, you knew at the first sight how this will turn out - if not, you live under a rock.
Apart from the story, the dramaturgy was boring as hell. We spent way too much time on useless things, on brooding, on lamenting, it was really painful to watch.
Apart from... okay, so the story was lame, the dramaturgy was boring, but it could have been saved, but the editing and cutting was crap as hell - I can't comprehend why you had to cut at every peak point of a scene, why couldn't you just let it play out - feelings were lost in this editing, emotions didn't impact as they should have. What I mean is that we should have been focusing on the big fight with Max and El, but we had to jump to Hopper once in a while, just to see him run.
I think this 4th season's biggest mistake was that it wanted to grasp way too much than it could handle. We followed too many characters, and sadly most of them just weren't as interesting to watch them as it should be in a tv show. It was boring as hell.
So I think this is way overhyped - just because it has all of the 80's songs, this shouldn't be looked upon as a great show. It's fair and okay if you enjoy it, I enjoyed some parts too, but to say that this is a good show is like stating that you don't consume any entertainment, and your standards are waaaaay below the avarage.
Of course you can disagree with me, but try to convince me.