Great show. I just wish the dialogue was better.
For example, when Bjorn asked Ragnar "Did you have sex with her?". I understand they're going for a contemporary Norse way of speaking but "Did you sleep together?" or "Did you fuck her?" would have been more believable.
I think this season has been too slow, also. It started off amazing, then it took all these episodes just to wrap up the Jarl Borg plot. I want Ragnar back in Wessex, damn it. Isn't that what he's famous for? Less soap drama more raiding. The show is at it's best when it feels like Spartacus. At it's worst when it feels like Game of Thrones.