I am not against the British stiff upper lip or their humour... and as long as there's cleverness to be amused by, that will work for me....
Read the comics/graphic novel? How do you like it, in comparison? A lot of the changes threw me off a bit... that's me, I usually wish they would adapt the story more true to the original (especially when the changes don't seem to have a reason).
Independent from the source... I like the actors, and the characters... very believable. The style (kinda washed out colors and such) and the story didn't draw me in, though it got better for me after the first episode, and then not so much after the third... I haven't watched the more recent ones yet (7-8-9)... I'll go back and try it again though, if it ends up developing well.