I've seen the whole of season one. I think it's a good show, but I think it's a bit overrated. They liked to cash in on the fact the main character's a serial killer, but he only kills bad people who deserve it anyway, so to me he's more of an anti hero than a serial killer. I saw some of the twists coming in season one, but I still enjoyed the show enough to have ordered the second season box set. I've heard good things about season two and I'm looking forward to seeing what happens. Will let you know what I think when the box set arrives.