I'm a few hours in. Once you get through the first level, where you transition to the next part of town, it really opens up in terms of the narrative and things you can do. The complexity and depth of the game increases. I can see where if people are forming opinions off of the first section, which is very directed and limited in terms of what you can do, then yes I can see how that would disappoint people.
But I am liking it more as I play more. Not perfect, but pretty good actually. Graphics are serviceable, maybe could have been polished a bit more, but they do the job. The atmosphere and attention to vampire lore so far seems quite good, but to me the standout is the voice acting and depth of the writing. The voice actor for the main character is fabulous. Reminds me a bit of the male Imperial Agent from SWTOR - I think the term I used back then was "his voice sounds like silk running over razor blades". Smooth but edgy.