Played two hours. Saved to visit the Festival Plaza for the first time. Exited out of Festival Plaza to get Internet connection correct. Lost all progress.
But now I'm back! The game is so much fun thus far. It's such a completely different feel--I love the new battle "types", the lack of HMs is phenomenal, and the more open-world exploration makes things super enjoyable.
One weird quirk--I feel as though there are a lot fewer towns? Or at least it plays that way so far. I've definitely had my party healed outside of a Pokemon Center a whole lot more than I've healed in a PC.