(This review may contain spoilers).
I have to be honest… this film was quite a disappointment. Even up till about halfway through, I felt no emotional connection to the characters. Amelia was a terribly neglectful mother… and Sam was just really irritating.
I did think there were certain aspects of the film that were quite creepy, especially with the popup book… and even more so with version 2. There were some really good sound effects, too, like at the beginning, where it sounds almost as if Amelia’s underwater.
The film itself seemed to be quite low-budget. And like with most horror creatures, the babadook was less scary when it was actually seen.
There were a few jumpy moments, as well as some really disturbing ones. Those would have worked much better if I was able to care about the characters, though.
I would have liked more of an explanation about the babadook, too. This film seemed to fall into the fairly common trap of substituting scares and gore for a plot that made sense and character development.
There were some good elements of foreshadowing and I did feel that Sam reacted fairly realistically for a child of his age.
The ending of the film would have had more of an impact if I’d been emotionally invested. I don’t think this is a film I’ll be watching again.
Ink of Blood 
There was a lot of character development though. You were just unable to connect with them perhaps. Although it is fair to say that the hype kind of spoiled the film a bit.
That’s probably true. And hype can ruin films (and books and other things).