Funny fact about moden bioware games. The in-game cut scenes that are supposed to imerse you in the game, and give you a feeling of "being there" since it uses the in-game draphics actually take me OUT of the imersive experience many times. Especially in the DA series. (DA:I getting a new agent)
The sometimes VERY awkward scenes when your character moves weird, has a stupid look on his face, or the dialogue has a second or two between the sentences of the persons without anything in between ends up breaking it horrible, but when I look on the games that use text based "cut-scenes" or rather no cut scenes, I can't really think of times where it took me out of the game, as long as it's well written and the characters stay in character. (Fourth wall breaking can be very bad imo)
I trust enough in the writers of Obsidian that it won't be a problem in most cases, there is no weird CGI to take you out of the game, or break it up with movie scenes between dialogue boxes. I'm very interested in how well the drawn scenes will work with the full game, but as a whole I feel this type of game has it MUCH easier than more modern style games in keeping the game experience fluid and imersive.
A good example was one library scene in Torment, when I read codex entries in DA I do it because me as a player am curious, when I spent several hours reading lore in Torment, it flet like I was doing it both as a player and as a chracter, because the story and writing was so compelling that it made me want to stay and read as much as possible, because my character wanted the information.
The FFish cut scenes when casting some spells on the other hand worked in the opposite way, the first few times it was cool (first time was awesome) after that it became a time sink that took you out of the game imo.
This type of game has it easier than most modern games to keep an imersive and fluid story going, I feel this is one of the safest areas to have faith in Obsidian!