I saw 7 episodes in one day. That says something.
I think overall, it's a lot better than the individual seasons of J.Jones, L.Cage, and I.Fist.
But not nearly as good as the 2 seasons of D.Devil.
When "Defenders" get going and not have time to think or try to act and be all dramatic, it works much better.
But when these characters try to "act", it sucks. The dialogue is mostly pure crap. They waste a lot of time talking about absolutely nothing. When DD, Stick, Carrie Anne Moss, or Sigourney Weaver talks, it's important. It matters. When the rest of them talk, it's mostly crap. I was playing my "Air Fighter" game on my iPad during some scenes when they are chatting away about worthless crap.
"Defenders" lacks focus. They need to cut all the worthless chatter and most of the secondary characters and just get to business.
For drama acting scenes and character development, just focus on DD and Punisher.