I thought the video did a great job linking the story and recreations with the real-life research and expert accounts. That really helped validate what the experts were saying. Additionally, using the archaeological findings to recreate a model of the prominent trading city was mind blow.
In all, I am very impressed with the engineering ability of the vikings. I think they are often portrayed as the dumb savage conquerors who fell off the planet. In actuality they are incredibly smart and sophisticated conquerors who never left where they conquerored effectively adding their culture forever!