Watched the first two episodes. Incredible visuals and production design, though there's one Scene in the 2nd episode that looked noticeably cheap compared to everything else and stood out like a sore thumb (mostly some very flat lighting).
The world building is top notch, but definitely requires a lot from the viewer in terms of information processing. More show then tell rather than show not tell.
Only doubts so far are from casting. While Pace and Harris kill it, there's not too much charisma with some of the other principal characters, but there plenty of room for development there.
The score is fantastic too, but the credit theme is kind of forgettable and would have benefitted from some kind of memorable hook ala Game of Thrones, but that is quite nitpicky of me.