I think I'll write about my opinion of this episode, since I'm here.
This episode, to me, is a good start to a series of episodes later on down the line, it gives us a quick look into each of the mane 6's personalities, talents, jobs, etc. Not to mention that at the very start, we get a bit of insight on Equestria's history and why the villain known as Nightmare Moon came to be. Though if I have to point out what I don't like about the episode, it's that Spike feels like he's a bit under-used, like there are a bit more opportunities for him to show his personality aside from being Twilight's assistant and have a crush on Rarity. That and the elements of harmony felt like a plot device for the episode, though at least, in a way that doesn't feel like it's there just for the sake of this episode only. Even with all that in mind, I enjoyed this episode as a start to a fantastic series later on down the line.