I played through the main quest line of the demo. Have the two sub (side) quests left which I will do tomorrow. Game is actually really good. Reminds me in some ways of Trials of Mana 2020 where it's one of SE's AA JRPG's and obviously a few steps below a Final Fantasy or Dragon Quest. Anyway, the world looks good except for that black outline but when playing, I forgot it was even there. Visually, looks good otherwise. No issues with the visuals. Sound is solid as is the voice acting. Doesn't appear to be any voice acting outside of the main quest line. Music though is great and that was just the first chapter. Enjoyed the music the entire way through. Story and characters seem okay thus far. Nothing special but I only had the opening cut scene and one after fighting the main boss to complete chapter one. Gameplay is definitely a little clunky and wish it was more fluid but still pretty good. Combat could end up having a little more depth to it as you get a second weapon at the end of chapter one plus there seems to be a lot of different ways to attack enemies and that doesn't include the companions that you have at the start of the demo which I assume you gain later on.
Negative wise, besides that there may not be any voice acting in the side quests (will verify tomorrow), the back tracking to complete side quests is basically when you finish the main quest in a chapter and go back to Valhalla which is your home base/hub area, you can then activate the side quests and go do them if you so choose. This could get annoying after a while especially if you can't complete them while just on the main quest path. Other than that, I would like to be able to turn off the "hit counter" on the HUD. It's freaking annoying and in the way at times. They should have allowed an on off/off option for this.
Overall, really enjoyed the demo and will actually pre-order at GameStop tomorrow for PlayStation 5. Unless the game reviews poorly then this will be my next new game once I complete Steel Rising next week.