It's pretty, visuals are nice but just forget everything you know about about the Arthurian legend even if what you know is not much.
This is a "today" show, men are crap, women are better, it's not on your face but some dialogue lines mmh.
Ygrain is Morgana is lesbian, Arthur is a thief and a scum, Uther is a joke and not even a legit king.
Merlin, I like the actor in Vikings, but his Merlin is a mix between Floki and Jack Sparrow, so not very original.
It's very watchable, don't get me wrong, sets are good, vibrant colors in the forest, good production value and the actors are ok.
PS : I'm at ep 06.