This show is very good. It's on Max and will be soon (or already is?) on Netflix, so check it out! The setting is very interesting and was totally unknown to me: San Francisco in the 1870s with tensions between gangs in chinatown, irish workers who see their jobs go to cheaper chinese workers, policemen who try (or not) to do an impossible job in an impossible situation and politicians split between trying to please their voters who want work and safety and their financial backers who want cheap labor. This complex situation allows for a great many power struggles that drive the story. There are many interesting characters, some of them heavily inspired by historical figures (like the Madam Ah Toy). The way the show handles the different languages is also pretty elegant and the actors do a good job with it (when Chinese characters are with each other, the cast acts in English, but when you have Chinese characters having to speak in English to non-Chinese people, the actors go in "english as a second language" mode).
My only issue is the somewhat forced "cable effect" that feels very outdated. By that I mean displaying a level of violence and nudity that would not be possible on a network show, just to say "we're on cable! Wuwu!" without it really serving the story. As a proof, the show is very inconsistent with it. Minor gripe really.