The fourth season of "Stranger Things" ended with a bang – a reported more than 1 billion hours of viewing – and a whimper: the telltale dust of the Upside Down drifting gently upon the town of Hawkins like delicate ash from a ruptured volcano. It was not Mount St. Helens that blew, but a gash that appeared in the earth, rending the real world and allowing that monster-y dimension, the Upside Down, more entry.
But not everyone was impressed. Critics and viewers alike found this season of the Netflix show at times thrilling, and at other times, a very frustrating watch.
