I have seen all 8 episodes, and I absolutely loved it. It wasn't perfect, there were some pacing and timeline issues, but it was incredibly enjoyable. It exceeded my expectations. Fantastic cast, great storylines, and the right balance of darkness and humor. Cavill won me over - I didn't think he could pull it off, but he did admirably. I hope they do up the wig budget next season though. I enjoyed it far more than I ever enjoyed GoT, which was a slog to watch. The eight episodes did a ton of worldbuilding and established the three main characters beautifully. I can't wait for more.
I've watched only the first episode so far, and was distinctly underwhelmed, I'm sorry to say.
The individual components -- the acting, filming, fight-choreography and so on -- were are pretty impressive, but the overall characterisation and tempo seemed all over the place, and the fairy-tale setting of Cintra (which I found irritatingly and distractingly close to "Sintra" in both sound and referent, rather as if they'd called it Ouindsor or Bryton or something similar) was particularly frustrating, since -- presumably because the directors and producers saw no point in fleshing out a place that's going to be destroyed by the end of the first hour -- the goodies and baddies alike were all so two-dimensional.
And I'm afraid that, for me, Princess Cirilla's magic power was irresistibly reminiscent of Violet Elizabeth Bott's superpower in the Just William books, in which she would threaten to "thcream and thcream and thcream until I'm thick" if she didn't get her own way (though Cirilla's version is certainly more impressive).
I'll try a couple more episodes to see if it grabs me, but so far I'm less than enthused.
I think moving Ciri forward in the story was a mistake. It made the season plot very messy. I'd rather they did the Ciri origin story in a single episode later on, once the worlbuilding and key exposition had been set up.