We all know ponies forgive fast. Except when they don't:  but Starlight's village really forgave her fast and completely.

I had to look up what Trixie was mumbling. "Of course, Princess Celestia... I'd love to perform for peanut butter crackers..." 

Discord was genuinely intimidating in this episode. Really shows how much he cares about Fluttershy.

I thought the hive was cool looking. Basically exactly what I expected a changeling hive to look like. And the changelings looked awesome when they transformed too.