Agree with Kalniel.
I do feel the dialogue is awful, very basic options like Yes/No/Don't Know/Sarcastic all laid out so one option is easy to press with a controller. Think I would have preferred less speech and more comprehensive written dialogue. Also some people where the option exists to speak just grunt and don't say anything at all even if you have just saved them or something.
Definitely feels more like a console port than a PC game that gets ported to consoles.