Well, after more than a dozen shows, the inevitable finally happened. It was finally lupus. I mean Mephisto. But more on that later. Let's focus on the main driving force of the season before That Ending.
One of the parts I loved the most about the first three episodes was how the show handled Riri's mental health and the back half of the season continued that strong work. This stood out the most when Riri experienced her panic attack in midflight and later on when she finally admitted to her mother she had a problem and needed help. Riri's genuine thanks to her crew after they assisted with building her new suit further reinforced the healthy nature of accepting help when one is struggling.
I also loved how magic was utilized in this show and of course Cree Summers portrays a sorcerer (or at least began training as one before focusing on motherhood), but as I much love the idea of Summers as a sorcerer, I loved Zelma even more. I felt her glee at showing off her magic and I greatly enjoyed her rapport with Riri while researching the Hood's origins and eventually working on a plan to battle him. I was a bit bummed out by the post-credits scene that showed her naïveté and her love for magic being used against her, but hopefully if Ironheart gets a second season, we'll see more of her. Or, alternatively, she'll appear wherever Jen Kale, Billy Kaplan, and Agatha Harkness reconvene on our screens.
However, one thing that did take me out of the show was the White Castle fight. I get that this is a superhero show and a degree of implausible will occur, but it was damn hard to believe Jeri, Roz, and Clown could all take violent blows from large metal cylinders without any serious injuries and even harder to believe Slug could walk away from the truck being flipped. Again, I get it, comic book physics and all of that but it was still a bit too much to look past, especially considering the emphasis on the sheer violence of those blows.
It does occur to me that the manner of Mephisto's return is precisely how in the role people didn't want him in WandaVision, i.e. a last-act villain who suddenly takes the stage in lieu of the season-long villain who is more or less easily disposed off. I definitely agree that I'm glad that didn't happen in WandaVision (and Agatha All Along and any other place we had previously speculated his triumphant appearance) but I will say that I'm not that bothered by it happening here. Not because of the perceived weakness of The Hood as a villain, but rather the season has actually teased a greater force hiding in the shadows, haunting Parker's livelihood. Perhaps the show should've introduced Mephisto's deal with Parker in episode five instead of six to ease in the transition of the climax, but I think it still works overall.
As for the controversial ending regarding Riri's decision, I'm torn on it. The show did a good job of setting up Riri's temptation by demonstrating how much Natalie meant to Riri, how Natalie's violent death in front of Riri's eyes effected her, how Riri struggled to overcome that trauma, and how she coped with the idea of an AI looking and acting just like Natalie existing in that space of trauma...and then ultimately losing that AI just as Riri made peace with AI Natalie's existence. On the other hand, Riri decision to take the deal could potentially send a bad message regarding mental health by saying that Riri went through all of those steps and still "needed" to make a literal deal with the devil to "heal" herself.
That being said, I won't be so adverse with this turn of events as long as the show gets a second season, is able to follow through with Riri's deal, and directly shows why that deal was always a bad idea and it's always better to treat your mental health in a different manner. Unfortunately, I fear that we might not get that second season between the review bombing from racist, sexist assholes, genuine reviews with genuine criticisms, and Disney's disappointing decision to release the season in two three-episode chunks. Fingers crossed.