Giving a "grade" to an anthology show is virtually impossible. Since the episodes goes from superb in the start, to utter trash in the 5th season. The topics are dystophian, some very Matrix, some very George Orwell, most about showing us a mirror into our own lifestyle. My own favorite is Nosedive with Bryce Dallas Howard in a society VERY close to ours, were everything you do rank you not just socially, but actually if you can rent a flat. It takes thr shallowness of social media to a new level. Most of the episodes have pretty dark and sometimes disturbing endings, making the viewer think. It's too bad they jump the shark in 5th season, with so bad storytelling, it just made the 1st season even more of an achievement.