Well, finally got to watching the new episode, and I think it was a fantastic episode; probably my second favorite this season so far. The plot was nice, the humor was good, and that animation was gorgeous. Oh, and Pinkie Pie was adorable.
This episode had loads of adorable expressions from everypony in the episode, and the song was so endearing. After thinking about it most of the day, it's now my favorite season 4 episode to date.
I still think Rarity Takes Manehattan is my favorite so far, but this episode was very close to being first. And yeah, Pinkie Pie had some really adorable expressions.