Really love this show.
I watched the UK version first (I've seen all the episodes) and I've watched a few episodes from the US version. In my opinion the UK version is by far the better of the two. The characters are more interesting and feel more sincere.
I lost interest in the US version after a while, is it still going or was it cancelled?
Edit: So I just realized the 5th season of Being Human has already aired and finished. What? Goodness you really don't hear anything about this show unless you're actively looking at it.