The Flux story line started out very interesting. The new baddy (our watch group calls them the bedazzled skeletons) are probably the most terrifying adversaries of the Doctor.
Dan is pleasant addition to the companion team.
The subplot love story in chapter 3 was probably the best part of this 6 part story.
I think my biggest hang up was the numerous seemingly arbitrary story telling devices as a means to get to an end was just mind boggling and confusing. Without spoiling things… there were so many major changes in this season that were either nonsensical or completely unnecessary to just get the end. The finale leaves more questions than answers.
Pretty disappointing from a long time Doctor Who fan.