I just watched it and I liked it.
Main Points I Noticed:
* It is a lot like esposide 1
* Twilight basically refriends here friends
* It like her (twilight) coming to ponyville
* The dance she goes to is the same as the galloping gala
* They(mane 6) defeted Sunset Shimmer like nightmare moon
* They made this story like a little add-on to season 4
* Twilight becomes a princesse in the movie with the help of her friends which is like all the seasons together
In all togther I really liked the movie. Hope you like it too.