My first impression and suspicion is that it has been Americanised. British humour tends to be more grating and grotesque than what's considered acceptable in the US, and the outlook is bleaker. So far I've watched the first three episodes. The first even has some sort of happy ending. The second episode looks just like a bleak prequel to Inception, rather predictable. The third is maybe the most faithful to the original spirit. There seems to to be a slow transition from American to British in the three episodes, so curious to watch the others.