My thoughts:
It was well paced, considering the 20 minute format it had to work with, something this show has had its ups and downs with. It didn’t feel rushed, and provided a good story in that time.
People are probably bugging about discord being reformed, saying that that is out of character. Really, it isn’t. Discord isn’t bound by any rules that say that he has to be evil or even mean-spirited all of the time. Only chaotic. He's just there to have fun. Even when he was reformed he still added a “most of the time” to his promise to use his powers for good, so he is still acting in his character and doing as he pleases. He simply learned something new about himself, and is acting on that.