This episode is the second part of a two episode story and was almost as good as your standard Medium episode - i.e. pretty decent - but it was let down by revealing one of the most significant clues too early on.
To make it worse, this clue was revealed in the first part, so the second part is a frustrating watch, as Allison and co. get more and more clues and don't click to what is going on until right near the end.
This could have been fixed by either revealing said clue much later on - perhaps as one of the final clues that finally had Allison realise what was going on - or by making the story a single episode (it really didn't feel like it needed to be two episodes), but as it is makes this episode far less enjoyable than it should be.
To make it worse, this clue was revealed in the first part, so the second part is a frustrating watch, as Allison and co. get more and more clues and don't click to what is going on until right near the end.
This could have been fixed by either revealing said clue much later on - perhaps as one of the final clues that finally had Allison realise what was going on - or by making the story a single episode (it really didn't feel like it needed to be two episodes), but as it is makes this episode far less enjoyable than it should be.
