It's very clever and very dark (but then Black Mirror always is). I do agree it's a bit prententious in places. Having now watched all of the 5 endings, and not without some exasperation, and yes repetition, the penny dropped that Bandersnatch is all about choices and the choices you think are under your control. The outcome is pretty bad no matter how you choose because the ultimate destiny is not in your hands. Choices in life are not always good versus bad. It asks more questions than it answers and while that might not be satisfactory to some, that's the whole point.
Review of Black Mirror: Bandersnatch
