After watching it like 7 times, i have to say CPDR, it looks excellent.
At this stage of development, i can already see that this game, when holding the controller or mouse and kb in your hands, plays WAY better than any of the two previous witchers. If you look into the details, especially in combat, how Grealt moves, when, at what pace, and how mobile he is, its clear TW2 cant even compare to this regarding controls and responsiveness.
The environments really impressed me a lot too, there's a LOT of vertical variety, Grealt can run fast and jump far and high, which adds many possibilities, makes him feel more like a witcher also, and the whole scene of the wilds in the demo looked very natural and varied, not like other open worlds.
Graphics were great, but I cant say much because of the stream quality, it seemed like Xbox One gameplay, very nice facial animations and features, except for lip synching which looks a bit stiff and uncomplete.
The music was awesome and fitted the moments very well.
On the bad side, honestly there's only the art style of the UI, which is a matter of taste, and then the griffing animations, I really didn't like that the animal seemed very rigid and not capable, like it lacked mobility, it just stood there in front of Geralt making normal attacks, maybe this was because Geralt brought it down with the crossbow but i dont know.
Everything else looked just like it should look, amazing but from a game not finished yet, which is excellent..