Warning, spoilers for the newest episode ahead!
Just finished watching the second part. It was amazing, the part where Fluttershy was acting cruel was the best though... it's so out of character and that's what makes it hilarious. XD This probably takes the cake as my favorite episode to date.
I do feel like Discord could've put up more of a fight rather than going, "oh, pfft, try using your elements on me!" and being defeated, but it was still a great episode. He really is MLP's version of he Joker; that's clear from this ep.
The ponies' bickering was hilarious.