I watch this show on the train on the way home from the city (London) and consistently embarrass myself when I 'lol' in a relatively quiet carriage.
This is not normally my cup of tea, but the downright blatant comedy has me in stitches. It's the kind of jokes you have with your very close friends but probably wouldn't say in the office, if you're conservative.
I watched the show because it was featured and now I use it to cheer myself up before I get home everyday. The characters compliment each other incredibly well and I'm a sucker for transatlantic relationships, I think the dynamic of English vs American is interesting when written well, many of the myths Americans have of the English and vice versa are dispelled.
Essential viewing, I hope Amazon do themselves a favour (favor) and market this show a little more aggressively, I think with the right marketing this show will become a massive hit.