I really enjoyed the second and third seasons, but honestly the first season is by far my favourite. I enjoyed the relatively grounded scifi setting and subsequent seasons are getting more and more "space magic". But now that I accepted that, I look forward to viewing the rest and waiting for other seasons. It is great that Amazon picked this one up.
Furthermore, talking about video games, the first season of The Expanse felt somewhat similar to Call of Duty Infinite Warfare campaign in more than one way (which I consider to be underrated). I think it is worth a try if you enjoy a Mars vs Earth and colonies story with political stuff mixed in.