This was, in terms of production, by far the most impressive episode of Vikings yet. Really cool stuff.
They did two major fake-deaths though, which I do not enjoy. First Rollo, who seemed to die sinking into the river, and then Bjorn. I really felt the loss of that character, and I guess I am glad on some lever that he's still alive. But I would rather that have actual deaths instead of those fake-outs.
But even without major deaths, this was a harsh episode on the characters, and their loss was well done. So still a great episode.