The tense atmosphere, the talented diverse cast, and the fascinating plot all worked for me, so I'll definitely keep watching this. One of the best things of this show is it explores the rich Aboriginal culture, mythology and history in Australia, something I feel is largely untold so far in mainstream media, and thus has much to contribute to the world.
And yes, there are many parallels in the experiences of Australian Aboriginal communities, the asylum seekers in offshore detention camps, and the "subhumans" in the show, which makes it feel somewhat all too real at times. The social issues and the politics explored in this show makes Cleverman one of our more important shows.
Even if you don't care for all the stuff I mentioned so far, the show performs very strongly as a superhero series with a dark and gritty atmosphere. The acting is solid, the shots are gorgeous, and the mystery is gripping. I highly recommend this to everyone who enjoys a serious drama.
Oh, also, Cleverman is already renewed for a second season.