Nice summary
@Tom Davies 
I tend to watch these shows not noticing the weaknesses too much because my mindset is just to enjoy them. I'm sure I subconsciously noted the Hollywood hacker trope (which I normally dislike), but because I enjoy mostly MCU shows it just slid by. I wasn't 100% sold on the reveal about how the town came to be but I'm not sure how else it could have been done.
Wanda and Vision were great, Agatha was a great reveal, the kids are confusing which I'm sure is partly by design, but also partly because they can get away with it within the format. The Monica reveal became predictable but I'm OK with that.
I was not totally happy with the ending as it seemed to leave too many things hanging while she just swans off somewhere. But then I didn't know about the 2 end credits scenes until I was reading another review, I stopped reading once they began to mention them lol. Wanda's scene in particular made for a more satisfying but still intriguing ending.
The MCU is turning into a bit of a Microsoft analogue with their heavy borrowing from other genres. They really ought to give special thanks to Noah Hawley, no Legion, no WandaVision.
Overall I think 8/10 is about right. It will be interesting to see how Falcon and Winter Soldier does especially when Loki looks like the more interesting project going forward.