I'm English and live in the UK, and I thought these ads were dull. They're more of the same but without the charmisma.
In England we're so used to seeing American TV that the original ads work fine here - and are better than these new regional ones.
But the next time you watch TV, look out for the number of adverts which are American (or at least identifiably American). You'll find there are next to none.
Anyway, there isn't actually that much US TV in the UK. Apart from the imported dramas and comedies on Channel 4 and Five, most television is actually home-grown. In fact, British TV has been remarkably successful in exporting TV formats abroad recently. All this Pop Idol/X-Factor nonsense comes from British production. As does Who Wants To Be A Millionaire, Weakest Link, and many other game shows. I think that Big Brother might be British as well (but something tells me it might be Dutch