Curious what OB and others think about it. I watched all of Season 1, and have mixed feelings about it. I think it is, first and foremost, a series for fans of the books/games who know the characters already and get what's going on. The show skips between timelines quite a bit, which you can follow well enough if you're paying attention, but it's often poorly explained how events in one timeline impact the others-- I found myself googling like a fool after each episode to fully understand what I had just watched. I'd advise anyone not extremely into the books/games to have their smartphone on-hand...
Henry Cavill is fairly wooden in his portrayal of the main character, Geralt. Without knowing anything about the character outside this series, though, I did get the impression he was actually being pretty true to the character. There are a couple of characters-- I can't remember the name of the minstrel that starts following him around-- that are paired brilliantly with him, providing some much-needed comic relief. Oh, and every single action/battle sequence featuring Geralt basically gives you everything you could wish for in a sword fight-- the choreography and violence are pretty mind-blowing.
Outside of that, non-fans who love HBO/Showtime/Skinemax-type content are going to get it in spades. Game of Thrones has NOTHING you won't find here, plus some. Use your imagination, if you're not sure what I mean by that.
Without spoiling anything, I will say the final episode was probably the coolest cinematic depiction of magic/sorcery I have ever seen-- it was incredible and downright imaginative. There were also events in the final episode that made me sick to my stomach, though, and not entirely sure I would want to continue watching when Season 2 comes around sometime, evidently, in 2021. Much like with GoT, you'd be wise not to invest yourself too deeply in anybody not named Geralt avoiding a brutal death.