My main disappointement with this game is the relationship between Ciri and Geralt (or Ciri and Yennefer). When the Geralt/Yennefer relationship were incredible (it was just like in the books, which is great), the father/daughter relationship is for me a big, a huge disappointment. The most one I had in the whole The Witcher games. :' (
The subject is never really deepen. When I said to Avallac'h "She's like her father.", I did not mean to say she was like Emhyr, like the game force me to do. I wanted to say she was like me, Geralt! For me, this line shows perfectly the lack of work on this theme during the game. Although it could have been a really good theme for the game, with Emhyr keeping to ask Geralt after his "daughter". For me, he was never his father, and I was really frustrated the game never pointed that fact. Not once (well, with my choices).
And the relationship between Geralt and Ciri, and Yennefer and Ciri, is not deep enough. Geralt never say to Ciri she's his daughter. Ciri never call Geralt "Dad" or "father" (she did in the books! I know she's an adult now, but that don't change the fact she could call him "father", and Yennefer "mother", at least during critical moments, where emotions are strong enough to spread!). It can seems like details, but these rare moments were so beautiful in the books, to see Ciri finally admit Geralt and Yennefer were just her parents. And nothing of that in the game, when it could have been so great (and so much rarer in a game than in a book to have such scenes).
Another mistake : the big ellipsis during the first met with Ciri. First of all, I was sad to not have voice-acting during the scene where Geralt finds Ciri's body. The scene was beautiful, but I'm sure it could have been a marvelous, stuning scene with the cries of Geralt then Ciri. And after that, why the devs did an ellipsis? Can't understand that narrative choice. : (
I mean, after all this time, Geralt finds Ciri, his daughter, the most precious person of his life with Yennefer. And for the player who read the book, it was a scene really expected, for a really long time. So, why cut the scene? Why did the devs not let us hear the first words they had to exchange? Why did they have to skip the reunion? One of the worst mistake of the whole saga in my opinion. :/ (Probably not so hard for people who didn't read the books, but in my opinion it could have been so much better for everyone.)
I was disappointed too by the reunion between Yennefer and Ciri. Not really a "child/mother" reunion after so much years of separation. Not a scene when we can see she could do everything for Ciri, like Geralt do. : ( And, well, not enough scenes to showing these kind of relationships between the three of them.
I was so sad to not see all these things in the game. It's so rare to have a videogame character to have a family. And this aspect is not enough good for me. They were still great scenes (the first one with Ciri as a child, the snowball battle, and some others), but I have the strong feeling the game could really benefit, in a maybe enhanced edition, to add some dialogues and scenes between Ciri and her "father" and "mother"!
Except that, my main disappointment (on the narrative way) were about the wild hunt, like some people already said (some wraithes of the subquests have more dialogues and deep than the wild hunt, it's sad to think about that), and the way the ladies of the wood were just killed by Ciri (the three ladies were incredible, and I thought about them like twisted goddesses, not like some witches who can be killed so easily like if they were some random monsters). It ruined the characters who were so perfectly shaped until then, sadly. : (
On the other hand, the baron quest was probably the best thing I ever saw in a videogame. Can't believe how astonishing it was. :°)