This pemiere wasn't as exciting as past two-parters, but it was pretty good. I loved Starlight's characterization and her story here. She's starting to become one of my favourites and I hope she continues to be a part of season 6. It was nice to have a two-parter that doesn't just focus on Twilight and gives a side character more development. If they continue with her being Starlight's teacher that could be interesting to see and open some new story potential. Spike also had some (surprisingly) good moments.
The parts with Flurry Heart seemed kind of slow but overall, enjoyable episode.