At the time of writing, Stranger Things season 5 sits at 86% on Rotten Tomatoes, though we expect that score to change as more reviews come in (and again when Volume 2 and the finale arrive). As it stands, though, that's a series-low score: down over 10% from season 1's 97%, and down from season 2's 94% and season 3 and 4's 89%.