This show has hooks and they go deep in.!! This show is somewhat similar to other Fantasy noirs like GoT, in the sense that has its own set of magical creatures, factions, Politics, war and so forth.
Moreover, its world has some of its unique social issues like Racial discrimination by men against other creatures(Fae) as they are not allowed to socially intermingle among upper class of human society. Patriarchy(women not allowed to study in universities or go outside) among other things.
However, Carnival Row, unlike GoT is not based on books. Rather, it is an original content. Therefore, a lot of subjects, places, characters, objects are mentioned casually in a passing manner and audience is expected to catchup with them as the show progresses. I am halfway through the 1st season, however, this show still owes a lot of explanation to the audience. I am expecting that, this show might reveal more of its background in coming season(if it gets renewed).
As of yet, storywriting is up to the mark. Also, show progresses at a decent pace. However, Orlando Bloom as an actor seems to be struggling to leave a mark, which is beyond my reasoning as he is a very talented one.
Other than that, I am enjoying this show very much.
For me, It is 9/10 ★★★★★★★★★☆