I'm kind of late to my party; most of my thoughts have already been covered. It was a great show, the characters were fantastic, the plot was intriguing and often intense, and the cinematography was interesting, in my opinion (Like the auspicious angles that were implied to be from Malcom's perspective). Plus, I appreciated the fact that mental health concerns in a setting like the MCU were actually acknowledged to a slight degree, even if it was mostly just Jessica recalling street names to ground herself when her symptoms of PTSD were becoming unbearable.
However, it wasn't quite to the same level of Daredevil. Only a couple of episodes ended on a note that made me immediately want to watch the next one, and the ending wasn't nearly as strong as the showdown at the end of DD. I guess it makes sense, since Kilgrave's sole goal is to harass Jessica instead of controlling all crime in NYC, but he has flat-out mind control powers; I was expecting something bigger, especially since Fisk's powers boil down to money and muscles by comparison. And I know it's been beaten to death, but some parts of the show were filler. It's like they came up a couple episodes short during the scripting process so a few sub-plots got tacked on to fill time. I'm still up in the air about whether or not Nuke fits the bill, but most of Malcom's story was added late. I don't want to say the show was bad; it most certainly wasn't. But I'll have to echo those here who don't think we should get need a Season 2. Besides, we're still supposed to be building up to the Defenders; if everyone gets a second season, it'll be years before we reach that point.
I'll also agree that Simpson was weak as a character; he had potential, but he was ultimately just that angry Not-Captain America guy. I'm not as harsh toward Robyn, however. Sure, she was explosive and had the least charisma out of any character, but her behaviors line up with someone living with Borderline Personality Disorder. She has bursts of emotions, difficulty establishing positive relationships, paranoia, and nonchalantly using others to her own gain. She implied she was "off her meds" and was diagnosed with something, and BPD just makes sense. Even if she came off as obnoxious, assuming the writers intended for her to have BPD, she's fine. She felt unnecessary near the end, but she at least made the cast more neurologically diverse.