Stranger Things is a show that both amazes me and disgusts me. It's like a roller coaster, sometimes it's incredibly good and sometimes it's just terrible. You can obviously tell in some scenes the bad acting, lazy writing, etc. Still, the show is incredibly funded and is cool. Seasons 1 & 2 were the best, then Season 3 hit me with just....really? Now that Season 4 is finished and I have watched it, I think it is a true advancement from the Season 3 mess, but the ending was bad.
My advice? Watch it as you wish, but don't always be expecting a masterpiece at every turn.