I didn't quite make it to the end of the first episode despite liking some of the actors in it (Polly Walker and Ben Miller).
I mostly enjoyed that the thing is set in London but is filmed in Bath where I went to university and lived for several years. A genuinely beautiful Georgian city, they shot in all the obvious places which amused me quite a bit and meant I was looking at it thinking, oh there's a nice pub there, or that there's a good bookshop right where the camera must be set up.
A big budget for basically a soap opera. Mind you, so was Downton, but this has even more soap powder sprinkled on it.
Bath is better served as a location in the otherwise distinctly underwhelming McDonald and Dobbs which has great actors, a great setting and a terrible script. No idea why John Dickerson of 60 Minutes is a fan, but he's spoken about on the Slate Political Gabfest podcast on more than one occasion!
Adam