Been pretty disappointed in the season. For me, Black Mirror is always the same concept - take an existing piece of technology, extend it's capabilities, and show the potential impacts. From this season:
USS Callister -
Arkangel -
Crocodile -
Hang the DJ -
Metalhead -
Have yet to watch the finale. For me so far:
Arkangel > Callister > DJ >> Crocodile >>> Metalhead