Awful. 2 stars only because I've somehow retained some loyalty to the MCU. This was a massive disappointment. Starts out kinda weird, but things start coming together after a while, and then it gets real bad, real fast.
SPOILERS!
What is up w the kids? Was the casting for Pietro intentional and meant to thoroughly confuse us and make us wonder if this was, somehow, an X-men crossover? What is Darcy doing apart from her 2 minutes of screentime in the finale? Aimlessly driving around an ice-cream truck? Does Agatha have an actual backstory or is she just meant to be annoying and evil? How did Wanda teach herself how to cast runes, when she had no idea what they were just ten minutes ago? Why were the townsfolk so WEIRD when Agatha freed them? The finale's saving grace was entirely the post-credits. Not the post-post-credits. Those were weird too.
In conclusion, the whole series played like a really awkward 2000's Disney move and I hope it isn't setting a precedent for the quality of media we can expect from Marvel in the years to come. I've had quite enough of one-dimensional villains, flat and predictable dialogues, loopholes, unnecessary cackling, and ill-timed costume changes to last me for a lifetime.