I wouldn't say that I didn't like it. It was OK.
I didn't mind the pacing and slow unfolding of the story, though this 'entail' business was a little distracting and slightly irritating - it didn't need to be repeated again and again. But that's by the by...
What I disliked, however, was the characterisation - maybe because it seemed a little same old, and that I'd seen it all before. The one who truly engaged me was Bates, perhaps because for me the disability storyline is quite a different original take in period dramas like this one. Not only is this particular storyline is a contemporary one (given Iraq and Afghanistan), but may foreshadow the events to come vis-avis World War, making Bates' story even more interesting IMO.
As one poster said, the characterisation neeRAB more work I think. But as a whole so far so OK...