I've seen six episodes, and I've stopped caring.
The writing and especially pacing is just inept at places. Maybe, just maybe, it works if you're a diehard fan and know the stories already, but the showrunner is just incapable of providing the context needed for engaging the audience. (Those rabid fans might have a point some review sites come across as uninformed, but they miss the greater picture: that the review scores are more or less accurate. The quality simply isn't there and Netflix would have been wise to avoid the Game of Thrones comparisons)
Ms Chalotra fares the best - she's clearly giving it all, but even so, it's hard to care: so she's trying to find a way to get pregnant. So? There's no conflict here, no context to her powers or her place in the world.
The Witcher itself is simply too grumpy to be interesting. The show still works when the showrunner accepts it is about the monster of the week, and doesn't try to exceed her abilities. Cavill at least has his horse and his bard to talk to! Sadly, out of the six episodes watched, only one (#3) qualifies as a success: meaning the ambition doesn't outstrip the show's capabilities, budget and so on.
The Ciri subplot is simply weak-ass uninteresting. The actress got a thankless job and isn't nearly up to the task of carrying the Ciri segments alone, like Yennefer can (or at least comes close to). Initially I planned to discuss the shortcomings in plotting and pacing (introducing a whole forest of psychedelic space elves, and taking the time to set up a "should we take her in or throw her out" scene, only to completely ditch it
in the very same episode?! 
), but who cares - it's just
painfully inept.
It doesn't look good for this show when someone like me who really identifies as the core audience for mature fantasy only gives one out of six episodes an unqualified pass. I'll probably watch the remaining two episodes when I have the time, but I don't see a future for this show unless some key people gets replaced.
tl;dr: I am disappoint.