MADHOUSE productions are almost always on point when it comes to staying true to the manga. Death Note, Kiseijuu: Sei no Kakuritsu, Claymore are just a few of its brilliant works.
Now, what happened to Tokyo Ghoul is just heartbreaking. I mean, we have a manga that is on par with Death Note when it comes to its complexity and psychological theme and it gets that sorry adaptation from Studio Pierrot. Not only did they butcher the plot, they also ruined the characters and their development. Imagine if Death Note had as anime adaptation a story about a bored high school kid who finds a notebook and begins to randomly kill people, managing not to get caught by the police because there are no characters with an IQ higher than 2 digits.
This reboot has to happen.