@ZeroHell yes!
I've since finished it, and it remained great, though I did take my time and did all the side-quests and by the end, after over 80 hours, I was definitely ready to be over.
It didn't help that it ends in a dungeon, of which there are few in this game, but they're not great. They're not where the level design and ennemy variety shine. So eventually I dialed down the difficulty and plowed through.
But I did find all the Mimans and most of the other goodies in the overworld, and that remained fun throughout, though it got frustrating in that one area where it's pretty hard to know where you're going.
Anyway, solid RPG, and I hope in the future they build on this and just get better at designing open worlds and, perhaps, ditch the dungeons completely.