This show took me by surprise! I was expecting it to suck given Disney's recent track record but it was surprising well written and a good time.
I should point out that if you're looking to see more of Fisk or Daredevil, you may want to manage your expectations. There are some appearances of these characters but the story is mainly focused on Maya and her journey.
For those of you wondering if there's action, there is but the story is more about character development than fight scenes. That being said, in my opinion, the choreography was impressive and not over the top.
In summation: Echo is a story about Maya and her roots. There are elements to add complexity to her character/circumstances but in the end, it's about her.