I watched the pilot, and all that was running through my head was "where are the characters?" There's plenty of action, but the motivation is shallow, and personality seems to be explored solely through actions. In that sense, it feels like it was written by a twelve-year-old; it's impossible to care about the characters since they're so underdeveloped.
I guess it's good for people who are satisfied with flashy special effects and fight scenes, but I simply can't enjoy a show of this sort when I don't care about the characters enough to care what they're doing. Even super-gruff heroes like Batman get this right, through their PERSONALITY being affected by their backstory, rather than just their behavior.
P.S. Thanks