This episode was a good one, but this season's best for sure.
The strong point of today's episode was Fluttershy, her caracter was just great throughout the story and she did the best to change Zephyr's ways.
It's really nice to see that all her developpement she got has paid off in this episode
Talking about Zephyr, I can understand his caracter but his actions were so questionnable throughout the episode that it didn't help it that much, but at least he changed and that could have gone much worser. I could just say that his caracter was just like that for our negative reactions, and that is not good
Also, the pace seemed really rushed at the end somehow.
But you know, the episode wasn't that much flawed and some of the caracters really made this one up for the best.
TL;DR: A great Fluttershy episode, that showcases his brother in a bad way with actions that are really questionnable, but in the end it was not that bad and helped the episode.
Rating: 8/10