Personally I actually thought it was fairly solid. I would have liked the season to have a more climactic ending, but I can see that they're trying to leave the doorway open for a Season 3. Jon Bernthal really stole the show to me, he was to me what Kingpin was in Season 1, just a real spotlight stealer. Definitely exuded an aura of a man who was very much at war with himself and the world. Great acting.
I was already familiar with Daredevil, the Punisher and Elektra via the comics. So going in, I wasn't as confused by this season as some others have been. I really loved Jon's take on Frank Castle. I wish there were more scenes with him, but I'd be quite happy with a Punisher series or if he shows up in other Marvel shows/movies.
I do hope there is a season 3, but they are going to be working on the Defenders after the Luke Cage and Iron Fist series. Same with Jessica Jones, not sure if they are doing a second season or not.
The end was perfect I couldnt be happier. They introduced the Beast of the Hand and set things up perfectly for a Defenders crossover and the Shadowland storyline. Marvel is basically doing the same thing they did with the Avengers and it worked once so it should work again. People are suckers for good superhero movies and not that Super Girl/ Flash bullshit. Couldnt watch a single episode of it.
I cried at the Punisher. Not for him losing his family, but at that beautiful brutality!!! lol Loved the differences between DD and P, I liked Elektra too. DD and P had the best plutonic bromance in Marvel so far.