The characters and how they are portrayed by their actors are remarkable. The little things I noticed are so accurate to the time period in that they didn't modernize anything. This episode is the first to have the people they interact with are from the outside world with little mention of locals. As often would be the case, they had to make do with what they had, and they would never turn their back on anyone in need, anyone.
There was a lesson on judgment on people you don't understand. Having gotten to know the performers who were traveling through personally, everyone, especially Olivia learned that despite their differences on the outside, there were more similarities than differences.
I am amazed when I stop to realize that the on-screen relationships exist only on screen. If I had to explain one scene in particular to children today, they probably couldn't understand it, even though I do. It's as if they have always been a family, living for the day, dreaming of something more, and often settling for a lot less than they hope for. I don't dislike this episode, I happen to like a lot of episodes a lot more, but this is still excellent in its entirety.