Although littered with historical and biographical inaccuracies and exaggerations, Marco Polo has a good quality production and creates an escapist atmosphere of a mythologized past. The acting is average, and the story lines and characters are intriguing. The settings and camera work are great, and rather than solely focusing on Marco Polo the show has many other characters' roles and perspectives. The sense of power struggles is well laid out, although not even close to Game of Thrones level in scope (obviously).
In terms of any comparisons and/ or contrasts of other historical-epic type t.v. shows, I would say those that enjoyed the shows Rome, Spartacus, Vikings, and Shogun would enjoy this show. This show isn't quite as good as those particular shows, but is better than shows like Black Sails, Davinci's Demons, and The Tudors.
Considering it's Netflix first venture into historical-epic/ fantasy type genre, it's really good quality and more signs of great original content on the Netflix horizon.
All in all, I give it an 8.