I was intrigued from the early trailers, and absolutely sold after the first demo. About an hour ago I finally capped out on the three hour limit for the demo and I really enjoyed the time and I'm still definitely buying the game, but the way the demo works also does give me some reservations. It'll be really disappointing if the open-ended nature of the game just means you're playing through eight completely separate tales and the party doesn't actually have any interaction with each other. I also wish I'd gone for some different characters for my initial run; I like the notion of Alfyn as a protagonist but his prologue and motivation has felt really lacking compared to others so far.
Plus, I had him venture out and immediately recruit Therion, and having him helping out during Therion's first chapter felt...really thematically-wrong, lol. That's the sort of thing that concerns me with the individual character chapter structure. Game's gonna be worth it for the soundtrack if nothing else anyway!