Most of the cast are dreadful actors (the Witcher, dwarf and a couple of minor actors are great - Lenny Henry is totally miscast as the bad guy), performing a dreadful dialogue, in a dreadful story it's difficult to care about,
dreadful pacing, in a story structure that pulls you out of any moment that is half way engaging. A lot of it was clearly shot in a green screen studio and those scenes flat, empty and visually boring. The whole thing felt entirely pointless.
A lot of people are trashing this series for political reasons, which makes no sense to me, as there are a million legitimate reasons to hate W:BO. I really hope they don't bother making another one of these and I understand why Henry Cavill walked away from the series.