I have enjoyed the show thus far, but ...
... I could do without the Upstairs/Downstairs stuff.
Delving into the lives and machinations of the Downstairs staff makes sense in a show where the Upstairs residents are rather unimportant members of the nobility (like in Downton Abbey or U/D). But when the Upstairs resident is arguably the most important monarch in the history of the British Empire, I honestly don't give a crap about the chambermaids and the kitchen staff.