I don't really know if this was a good episode or not... I doubt that I can be objective about a Fluttershy episode featuring Dischord, since Fluttershy is my favorite pony and John De Lancie was the star at the first Star Trek convention I ever went to. However, I guess, the flip side of that is if they'd got it really wrong, I might have been massively disappointed. And I wasn't. I liked it. A lot. Dischord was entertaining, and Fluttershy stayed true to herself. I agree that the end felt a little abrupt. A little easy, really. But, I liked the choice they made about where to go with it.
I hope that they do bring Dischord back for some big season finale battle where he fights alongside Celestia. That would be really, really neat.