How would you rate TV show made for people that have either read books or played the game with so confusing narrative that it's impossible to figure out when it something happening (the first season is covering 70 years of events)?

I would rate it 5 and that even too much since monsters look like they are made with super low budget (classic Netflix production) but I will give it 6 since its have Henry Cavil as the main protagonist.

Witcher is just way overhyped, too low budget looking and too confusing to be rated a good TV show. One of the few highlights of the Witcher is music, but it's modern, not fantasy/medieval-sounding.