I finished this series yesterday. I really liked the series, and Bernthal was born to play the role, but it's not a superhero show and definitely not for kids. I also imagine that there will be more than one PTSD-riddled veteran needing extra VA therapist appointments after that, so if you or any of your friends suffer from that, maybe go watch Stranger Things instead or something.
Spoiler!
I don't think we'll see Micro again; I think this season was his arc, and it ended at a good place, which is good by me. I also think it's a foregone conclusion that Jigsaw will be back for Season Two, which is good, because I liked Prince Caspian's portrayal of his vanity and moral emptiness, and I want to see how he does that character with the sanity switch off. I also really liked Dina by the end, but she's not integral; I imagine that next season we'll be likely to have Frank run across one or two superhumans, starting with Force, who we last saw watching boxing reruns and from whom they could make a pretty good tear-soaked-rampage/theft-from-a-slimy-corporation storyline, maybe with Justin Hammer or alongside Melvin Potter? Now I'm just spitballing.
Other thoughts: I don't know how anyone could look at Crazy-Eyed Jacked-Out Bernthal swing a sledgehammer every day and think he was a mindless, bullyable gimp; I loved the song they used for Captain Sledgey's Revenge at the end of episode 1; I'm enjoying Turk and Now-Detective Mahoney more than I am missing Rosario Dawson; I did love seeing the van, but the muscle-car chase scene could have been better; Jigsaw's fate was squeamishly and amazingly perfect; and the girl at the popcorn stand at the end should be able to do much better than her weenie co-worker.
That'll do. Now what's next, Luke Cage 2, I guess?