I really liked it. It helps that I used to love all the shows it directly riffs like The Dick Van Dyke Show, I Dream of Jeannie, I Love Lucy, and Bewitched so I found it completely delightful on just that level without needing for the obvious mystery of their situation being explained straight away. Those shows were of course dated to a previous era even when I used to watch reruns as a kid so it's a bold choice knowing that a very large chunk of their audience will have no nostalgic frame of reference to what it's sending up.
Marvel's recent offerings have an outrageously successful formula that can be accused of being "paint-by-numbers" to an extent so it was nice that they're trying something so different with this and I was thoroughly entertained although I'm interested to see how it's received because I can see a lot of people being confused by it.
I am a Marvel fan but a casual one so I'm sure there are plenty of little easter eggs beyond Sword, Shield, Hydra, and Stark industry nods that people picked up on but the one thing I did notice is that they were pushing Wanda having children as the main theme which of course becomes a thing at the end of the second episode. Whatever reality she's in she seems to have some control over it as well.
Bettany and Olsen are great and fun to watch as was Kathryn Hahn and it was nice to see Emma Caulfield!
Looking forward to seeing where they take it from here.