Ada's rather lovely. But I do have a question mark over this.
Not unlike the M&M advert plothole (see below), surely the timing is off? May gets maddened by the ghostly touch, then dragged off to the Scottish-doctor-whose-name-I-can't-remember. She gets saved, but replaced by a robot, unbeknownst to all others (and sod off, spellchecker, unbeknownst is a perfectly good word).
Why? It seems this is to help get the Darkhold, but wasn't its existence only discovered later, and the book itself acquired some time after that?
M&M advert: man comes home, finds his wife in bed with a giant, talking M&M (as one does). Then a second M&M emerges from the closet and says "Scott's home early."
But how would he know Scott's home early? He's been in the closet! And why is he in the closet? The only reason is voyeurism, but then he'd never give himself away.
I'm still enjoying the series, but it does seem more interested in throwing in twists for the sake of it.
Take the example of the Uncle so obsessed by the Darkhold book that - he let himself be locked up in prison for years, thus denying himself the vengeance he'd always been plotting ... ??
And now the mad doctor who can build a dimensional jump in a day, and just happens to have built more than one android on the side, while also knowing how to replicate all of Agent May's behaviour ... ??
Btw, the Coulson-fake May double is something we had with a shape changer in Season 1, and Coulson figured that out. Why is he unable to now??