I didn't like season 1 when it launched very much, but 2 and 3 were enjoyable with plenty of nice moments, even though many are just exploits of pop culture references and other movies. Still, 1-3 was worth rewatching, with 3rd being the best. But Season 4 is an entirely random exploit and clone of everything else (including the previous seasons). Where the story completely lacks anything original and exciting, it overcompensates with overly gross scenes repeated over and over, just in case you forgot. The only highlight of Season 4 is Joseph Quinn's performance as Eddie Munson, most likely the best acting of the whole of Stranger Things.